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Monday 9 July 2018

What Happens To Your Body When You Don’t Get Enough Sleep

Maybe it’s just a little yawn now and then. Maybe you feel yourself nodding off while waiting on a red light. Or perhaps you need a caffeine boost to get you through the afternoon. If that sounds familiar, it could be that you’re sleep deprived. Running on empty.
You’re not alone. More than 40 percent of adults have enough daytime sleepiness that it interferes with daily activities at least a few days every month, according to the National Psychological Association. It’s not a minor problem. Lack of sleep has a serious impact on your physical and mental health.

THIS IS WHAT LACK OF SLEEP CAN DO:

Age your skin

Just look in the mirror when you’re sleep deprived and it’s hard not to notice a difference in your skin, especially on your face. Inadequate sleep is linked with reduced skin health, premature skin aging, and a decreased ability to recover after sun exposure. People who don’t get enough sleep also tend to be more dissatisfied with their appearance than people who get enough sleep.

Lower your sex drive

If you want a good sex life, you need some good sleep. A 2015 study showed that getting the right amount of sleep benefits a woman’s sex drive. A 2011 study showed that lack of sleep can reduce a man’s testosterone levels. With only five hours of sleep, study participants’ testosterone levels were 10 to 15 percent lower. Insufficient testosterone can affect sex drive, concentration, and energy levels, three things sure to affect your sex life. 

Affect your mental health

Lack of sleep can affect your mood and your outlook on life. You’re more likely to be irritable and unmotivated. Researchers say it increases your risk of anxiety and depression.

Muddle your memory

It’s hard to focus when you’re tired and your mind wanders all over the place. We’ve all been there and research does suggest that sleep affects learning and memory. Lack of sleep makes our neurons sluggish, so new information doesn’t stick. It’s also harder to make good decisions because our ability to assess a situation is impaired.

Get you in an accident

Those sluggish neurons an also make you accident prone. An increased risk of work-related injuries and fatal accidents is associated with sleepiness. Lack of focus, poor decision-making ability, and slow reaction time make sleepy driving a serious problem in the United States. The CDC estimates that one in 25 drivers over age 18 have fallen asleep while driving in the previous month. As many as 6,000 fatal crashes a year are blamed on drowsy driving.

Make you more susceptible to illness

You recharge your immune system during sleep. Lack of sleep can leave your immune system weak, so you’re more vulnerable to viruses and infectious diseases. It may also take you longer to recover.

Mess with your metabolism

Large-scale studies show that people who sleep five hours or less per night are more likely to experience weight gain or become obese. There’s also a relationship between how much sleep you get and the risk of type 2 diabetes.

Hurt your heart

Lack of sleep is associated with risk of increased blood pressure, stroke, and heart disease. Shift work has been found to increase risk of death due to heart disease and stroke.

Increase your risk of developing cancer

There is some evidence that lack of sleep may increase your risk of developing breast, colorectal, or prostate cancer.

SO, HOW MUCH SLEEP DO YOU NEED?

We’re all a bit different, so we have different sleep needs. Those needs also change during different phases of our lives. The National Sleep Foundation recommends the following sleep ranges by age:
  • newborns (0-3 months): 14-17 hours per day
  • infants (4-11 months): 12-15
  • toddlers (1-2 years): 11-14
  • preschoolers (3-5): 10-13
  • school age children (6-13): 9-11
  • teenagers (14-17): 8-10
  • younger adults (18-25): 7-9
  • adults (26-64): 7-9
  • older adults (65+): 7-8
If you miss sleeping all week, you can’t really make up for it on the weekend. Napping can help you get through the day, but you need to start sleeping enough every night to give your body time to rest and regroup.
Sleep serves a purpose, but we tend to dismiss its importance as we go about our busy lives. It’s time we make sleep a priority so we can be at our best to tackle those busy days.

Health Benefits of Kumquats & How to Eat Them

A kumquat isn’t much bigger than a grape, yet this bite-sized fruit fills your mouth with a big burst of sweet-tart citrus flavor. In Chinese, kumquat means “golden orange.”
They were originally grown in China. Now they’re also grown in several other countries, including warmer areas of the United States, such as Florida and California. In contrast with other citrus fruits, the peel of the kumquat is sweet and edible, while the juicy flesh is tart.
This article covers the nutrition and health benefits of kumquats, as well as tips for eating them.

A BIG NUTRITIONAL PUNCH IN A SMALL FRUIT

Kumquats are especially notable for their rich supply of vitamin C and fiber. In fact, you get more fiber in a serving of them than most other fresh fruits.
A 100-gram serving (about 5 whole kumquats) contains:
  • Calories: 71
  • Carbs: 16 grams
  • Protein: 2 grams
  • Fat: 1 gram
  • Fiber: 6.5 grams
  • Vitamin A: 6 percent of the RDI
  • Vitamin C: 73 percent of the RDI
  • Calcium: 6 percent of the RDI
  • Manganese: 7 percent of the RDI
Kumquats also supply smaller amounts of several B vitamins, vitamin E, iron, magnesium, potassium, copper and zinc.
The edible seeds and the peel of kumquats provide a small amount of omega-3 fats. As with other fresh fruits, kumquats are very hydrating. About 80 percent of their weight is from water.
The high water and fiber content of kumquats makes them a filling food, yet they’re relatively low in calories. This makes them a great snack when you’re watching your weight.

HIGH IN ANTIOXIDANTS AND OTHER PLANT COMPOUNDS

Kumquats are rich in plant compounds, including flavonoids, phytosterols and essential oils.
There are higher amounts of flavonoids in the kumquat’s edible peel than in the pulp.
Some of the fruit’s flavonoids have antioxidant and anti-inflammatory properties. These may help protect against heart disease and cancer.
The phytosterols in kumquats have a chemical structure similar to cholesterol, meaning that they can help block the absorption of cholesterol in your body. This may help lower your blood cholesterol. 
The essential oils in kumquats leave a scent on your hands and in the air. The most prominent one is limonene, which has antioxidant actions in your body.
When consumed in a whole food, such as kumquats, the different flavonoids, phytosterols and essential oils are thought to interact and have synergistic beneficial effects.

SUPPORTS HEALTHY IMMUNE FUNCTION

In folk medicine in some Asian countries, the kumquat has been used to treat colds, coughs and other inflammation of the respiratory tract. Modern science shows that there are certain compounds in kumquats that support your immune system.
Kumquats are a super source of immune-supportive vitamin C. Additionally, some of the plant compounds in kumquats may also help bolster your immune system.
Animal and test-tube studies suggest that kumquat plant compounds may help activate immune cells called natural killer cells.
Natural killer cells help defend you from infections. They have also been shown to destroy tumor cells.
One compound in kumquats that helps stimulate natural killer cells is a carotenoid called beta-cryptoxanthin.
pooled analysis of seven large observational studies found that people with the highest intake of beta-cryptoxanthin had a 24 percent lower risk of lung cancer. However, the research was not able to prove cause and effect.

MAY HELP COMBAT OBESITY AND RELATED DISORDERS

The plant compounds in kumquats may help fight obesity and associated diseases, including heart disease and type 2 diabetes.
Scientists are testing this in mice using extract from kumquat peels. This extract is especially rich in the flavonoids neocriocitin and poncirin.
In a preliminary study, normal-weight mice fed a high-fat diet for eight weeks gained significantly more weight than mice given a high-fat diet plus kumquat extract or a low-fat control diet. All groups consumed about the same amount of calories.
Further analysis showed that the kumquat extract helped minimize growth in fat cell size. Previous research suggests that the flavonoid poncirin may play a role in this fat cell regulation.
In part two of the same study, obese mice fed a high-fat diet for two weeks had a 12 percent increase in body weight. But, obese mice fed a high-fat diet plus kumquat extract maintained their weight. Both groups consumed about the same amount of calories.
In both parts of the study, kumquat extract also helped lower fasting blood sugar, total cholesterol, LDL (bad) cholesterol and triglycerides.
More research is needed, including research in people. Regardless, since kumquats can be eaten peel and all, you can easily tap into whatever benefits they may carry.

HOW TO EAT KUMQUATS

Kumquats are best eaten whole — unpeeled. Their sweet flavor actually comes from the peel, while their juice is tart. The only caveat is that if you’re allergic to the peel of common citrus fruits, you may need to pass up kumquats.
If the tart juice turns you off, you can squeeze it out before eating the fruit. Just cut or bite off one end of the fruit and squeeze. However, many people suggest popping the whole fruit into your mouth and biting in, which mixes the sweet and tart flavors.
It also may help to gently roll the fruit between your fingers before eating. This helps release the essential oils in the peel and mixes the flavors of the sweet peel and tart flesh. In addition, chew kumquats well. The longer you chew them, the sweeter the flavor.
If you want to soften the peel before eating the fruits, you can plunge them into boiling water for about 20 seconds and then rinse them under cold water. This isn’t necessary though.
As for the kumquat seeds, you can either eat them (although bitter), spit them out or pick them out if you cut the fruit.

TIPS FOR BUYING AND USING KUMQUATS

Kumquats grown in the United States are in season from November through June, but availability may vary depending on where you live. If you wait until the end of the season to look for them, you may miss out.
Check for kumquats in supermarkets, gourmet food stores and Asian grocery stores. If you live in a state where the fruits are grown, you also may find them at farmers markets.
The most common variety sold in the United States is the Nagami, which has an oval shape. The Meiwa variety is also popular, and is round and a bit sweeter.
If you can’t find kumquats in local grocery stores, you can also order them online.
If you can find and afford them, opt for organic kumquats since you typically eat the peel. If organic isn’t available, wash them well before eating as they may have pesticide residues.
When selecting kumquats, give them a gentle squeeze to find ones that are plump and firm. Choose fruits that are orange in color, not green (which could mean they’re unripe). Pass up any with soft spots or discolored skin.
Once you get them home, refrigerate the fruits for up to two weeks. If you store them on your countertop, they’ll only keep a few days. If you have kumquats that you can’t eat before they go bad, consider making a purée out of them and store this in your freezer.
Besides eating them whole, other uses for kumquats include:
  • Chutneys, marinades and sauces for meat, chicken or fish
  • Marmalades, jams and jellies
  • Sliced in salads (fruit or leafy green)
  • Sliced into a parfait, like the chia pudding parfait pictured above
  • Sliced in sandwiches
  • Added to stuffing
  • Baked into breads
  • Baked into desserts such as cake, pie or cookies
  • Puréed or sliced for dessert toppings
  • Candied
  • Garnish
  • Tiny dessert cups (when halved and scooped out)
  • Sliced and steeped in boiling water for tea
Recipes for these ideas can be found online. You can also buy ready-made kumquat jams, jellies, sauces and dried kumquat slices.

THE BOTTOM LINE

The kumquat has much more to offer than just a spunky name.
One of the most unusual things about these bite-size orbs is that you eat the peel, which is the sweet part of the fruit. This makes them an easy grab-and-go snack. Because you eat the peel, you can tap into the rich stores of antioxidants and other plant compounds found there.
The vitamin C and plant compounds in kumquats can help support your immune system. Some of these may even help protect against obesity, heart disease, type 2 diabetes and certain cancers, though more human research is needed.
If you haven’t yet tried kumquats, look for them starting around November and into the next several months. They just might become one of your new favorite fruits.

Eating Foods With This Flavor Can Promote Healthier Eating

At this stage, we all know that certain foods come with benefits, whether they're vitamins, minerals or energy-producing protein. But new research suggests that consuming one type of food — or more specifically, a flavor — may actually make us healthier eaters.
Researchers at the Beth Israel Deaconess Medical Center at Harvard Medical School found that consuming a broth rich in umami — a rich, savory taste — can trigger subtle changes in the brain that promote healthier eating and food choices, especially for women.
First, let's back up and talk about umami. Umami is a Japanese word used to describe a complex savory flavor beyond the four basic tastes of sweet, salty, sour and bitter. Certain foods — like aged cheese, fermented soy products, asparagus, grilled fatty meats or seafood — contain a molecule called L-glutamate, which is behind the flavor. 
The term was coined in 1908 by a chemistry professor from Tokyo Imperial University who went on to cofound Ajinomoto, one of the leading manufacturers of monosodium glutamate. As it turns out, this particular study was supported by a grant from Ajinomoto, though according to a statement from Beth Israel Deaconess Medical Center, the company had no role in the design, analysis or writing of the article. 
Also worthy of note is the long racist history in America of MSG being blamed for everything from migraines to obesity to asthma, epilepsy and autism. There's no scientific evidence it does any of those things, but people still routinely avoid MSG or blame it for making them ill. So while having an essentially pro-MSG study partially funded by an MSG company is kind of a red flag, there are decades an anti-MSG junk science in existence, so conducting new research in this area does make sense. 
But getting back to the study, published in the journal Neuropsychopharmacologyresearchers were looking to test previous work that found that eating a broth or soup supplemented with MSG before a meal can decrease appetite and make you eat less. To do this, they analyzed any changes that occurred in the brains of healthy young women after they ate chicken broth, with or without MSG added, followed by  a buffet meal.
Turns out the group that ate the umami-rich broth had more control over how much they ate, paid closer attention to the meal and had higher levels of engagement of a part of the brain linked to successful self-regulation while eating. 
“Previous research in humans studied the effects of umami broths on appetite, which is typically assessed with subjective measures. Here, we extended these findings replicating the beneficial effects of umami on healthy eating in women at higher risk of obesity, and we used new laboratory measures that are sensitive and objective,” Dr. Miguel Alonso-Alonso, senior author of the study and an assistant professor at the Center for the Study of Nutrition Medicine in BIDMC’s Department of Surgery, said in a statement
Alonso-Alonso also pointed out that a lot of the existing research on flavor has focused on the impact of sugar and sweetness on the brain and ignored the effects of eating savory foods. And he noted that more research outside laboratory settings needs to be done to see if these brain changes accumulate over time, having longer-term effects on our eating habits. Either way, we'll take this as an excuse to order the miso soup.

New study finds little benefit in popular supplements

Doctors weighed in, some calling vitamins placebos that make people who take them feel better, while natural health experts and some nutritionists reminded that a healthy diet trumps supplements.
A study released at the end of May by the Journal of the American College of Cardiology unsettled natural health advocates by affirming, “In general, the data on the popular supplements (multivitamins, vitamin D, calcium and vitamin C) show no consistent benefit for the prevention of CVD (cardiovascular disease), MI (myocardial infarction) or stroke, nor was there a benefit for all-cause mortality to support their continued use.”
Doctors weighed in, some calling vitamins placebos that make people who take them feel better, while natural health experts and some nutritionists reminded that a healthy diet trumps supplements.
“It seems to be a misleading statement from the start: ‘Vitamins provide no benefits for certain diseases,’” said Tobi Page, a registered dietician near Portland, Oregon, who owns the consultancy Eating is a Lifestyle. “Deficiency causes problems.
Toxicity causes problems. Certain vitamins can be extremely helpful for certain diseases. Other diseases have nothing to do with a particular vitamin. Eat more whole foods and less processed food. Move more. Sleep well. Relax. These are the messages I think we need to be supporting.”
According to Forbes, “One exception was folate and other B vitamins: There was low- and moderate-quality evidence that folate or folic acid (B-9) reduced the risk for heart disease. There was also some evidence that folate and other B vitamins reduced the risk of stroke.”
With at least 50 percent of Americans taking some sort of supplement and the vitamin industry reporting billions in sales, it is important to determine when and why supplements are needed. The takeaway of the American College of Cardiology study is that increasing intake of vitamin-rich foods is more effective than taking supplements.
“A balanced diet, one containing plenty of fruits, vegetables and whole grains, offers a mix of vitamins, minerals and other nutrients (some yet to be identified) that collectively meet the body’s needs,” cited health.harvard.edu in an updated report on vitamins and minerals. “Maybe what counts is the synergistic interactions of these nutrients — which might also help explain why trials of single nutrients often don’t pan out.”

Saturday 7 July 2018

Should Vegans Take DHA to Preserve Brain Function?

About half the dry weight of our brain is fat. Lower levels of the long-chain omega-3 fat DHA in some areas of Alzheimer’s brains got people thinking that perhaps DHA is protective. Since the level of DHA in the brain tends to correlate with the level of DHA in the blood, cross-sectional studies of dementia and pre-dementia patients have been done. The result? The dementia and pre-dementia subjects do tend to have lower levels of both long-chain omega-3s, EPA and DHA, circulating in their bloodstream. This doesn’t necessarily mean that lower omega-3 levels cause cognitive impairment, however. It was just a snapshot in time, so we don’t know which came first. As I discuss in my video below, maybe the dementia led to a dietary deficiency, rather than a dietary deficiency leading to dementia.
What we need is to measure long-chain omega-3 levels at the beginning and then follow people over time, and, indeed, there may be a slower rate of cognitive decline in those who start out with higher levels. We can actually see the difference on MRI. Thousands of older men and women had their levels checked and were scanned and then re-scanned. The brains of those with higher levels looked noticeably healthier five years later.
The size of our brain actually shrinks as we get older, starting around age 20. Between ages 16 and 80, our brain loses about 1 percent of its volume every two to three years, such that by the time we’re in our 70s, our brain has lost 26 percent of its size and ends up smaller than that of 2- to 3-year-old children. 
As we age, our ability to make long-chain omega-3s like DHA from short-chain omega-3s in plant foods, such as flaxseeds, chia seeds, walnuts, and greens, may decline. Researchers compared DHA levels to brain volumes in the famed Framingham Study and found that lower DHA levels were associated with smaller brain volumes, but this was just from a snapshot in time, so more information was needed. A subsequent study was published that found that higher EPA and DHA levels correlated with larger brain volume eight years later. While normal aging results in overall brain shrinkage, having lower levels of long-chain omega-3s may signal increased risk. The only thing we’d now need to prove cause and effect is a randomized controlled trial showing we can actually slow brain loss by giving people extra long-chain omega-3s, but the trials to date showed no cognitive benefits from supplementation…until now.
A “double-blind randomized interventional study provide[d] first-time evidence that [extra long-chain omega-3s] exert positive effects on brain functions in healthy older adults,” a significant improvement in executive function after six and a half months of supplementation, and significantly less brain shrinkage compared to placebo. This kind of gray matter shrinkage in the placebo might be considered just normal brain aging, but it was significantly slowed in the supplementation group. The researchers also described changes in the white matter of the brain, increased fractional anisotropy, and decreases in mean and radial diffusivity—terms I’ve never heard before but evidently imply greater structural integrity.
So, we know that having sufficient long-chain omega-3s EPA and DHA may be important for preserving brain function and structure, but what’s “sufficient” and how do we get there? The Framingham Study found what appears to be a threshold value around an omega-3 index of 4.4, which is a measure of our EPA and DHA levels. Having more or much more than 4.4 didn’t seem to matter, but having less was associated with accelerated brain loss equivalent to about an extra two years of brain aging, which comes out to about a teaspoon less of brain matter, so it’s probably good to have an omega-3 index over 4.4.
The problem is that people who don’t eat fish may be under 4.4. Nearly two-thirds of vegans may fall below 4.0, suggesting a substantial number of vegans have an omega-3 status associated with accelerated brain aging. The average American just exceeds the threshold at about 4.5, though if we age- and gender-match with the vegans, ironically, the omnivores do just as bad. There aren’t a lot of long-chain omega-3s in Big Macs either, but having a nutrient status no worse than those eating the Standard American Diet is not saying much.
What we need is a study that gives those with such low levels some pollutant-free EPA and DHA, and then sees how much it takes to push people past the threshold…and here we go: Phase 2 of the study gave algae-derived EPA and DHA to those eating vegan diets with levels under 4.0. About 250mg a day took them from an average of 3.1 over the threshold to 4.8 within four months. This is why I recommend everyone consider eating a plant-based diet along with contaminant-free EPA and DHA to get the best of both worlds—omega-3 levels associated with brain preservation while minimizing exposure to toxic pollutants.

Top 5 Natural Remedies to Prevent and Treat Parkinson’s Disease

While we tend to think of brain disease solely as the result of genetics, the reality is quite different. Of course, genetics play a role, but a growing body of research shows that dietary and lifestyle factors can make a huge difference in whether or not we’ll experience a brain disease like Parkinson’s, or how quickly the condition may deteriorate if we are diagnosed with the serious condition.
That’s because a healthy brain depends on many factors, including a healthy gut, brain-protective compounds, sufficient energy in brain cells and keeping brain inflammation to a minimum. Here are some of my top picks among natural remedies to help prevent or treat Parkinson’s disease. Of course you should speak to your physician before using them.

COFFEE OR TEA

That daily caffeine habit may not be such a bad thing if you’re trying to prevent Parkinson’s disease. Black, green and white tea contain potent brain-protecting compounds known as catechins. According to research published in the American Journal of Epidemiology, drinking at least 2 cups of tea daily can reduce your risk of Parkinson’s disease. Don’t fret if you’re more of a coffee drinker than a tea totaler; research in the Journal of the American Medical Association (JAMA) shows that coffee drinking may have the same brain-protective effect. 

COENZYME Q10

CoQ10 has been shown to slow the progression of brain diseases like Parkinson’s. In one study published in the medical journal Archives of Neurology, researchers found that supplementation with this naturally-occurring nutrient reduced decline linked to the disease by 44 percent when started early.
While the study was small, a basic understanding in CoQ10’s ability to boost brain cell energy suggests that larger studies will have a similar result. In the study, people supplemented with either 300 mg, 600 mg or 1200 mg. Those who took the highest dose had the greatest results. While CoQ10 is considered quite safe, 1200 milligrams is a high dose and is best used with the guidance of someone well-versed in nutritional therapy. A similar study in the journal Parkinsonism and Related Disorders also reported benefits of CoQ10 supplementation for those with the disease.

GASTRODIN

A compound extracted from Chinese orchids, known as gastrodin, has demonstrated effectiveness in multiple studies published in the journals Life SciencesFrontiers in Pharmacology and Molecular Medicine Reports against Parkinson’s disease. The Chinese orchid, Gastrodia elata is a traditional remedy used in Chinese Medicine. The extract is now available in capsule form in some health food stores or online. A typical dose is 300 mg twice daily. Follow package instructions.

NICOTINAMIDE RIBOSIDE

A new study published in the medical journal Cell Reports.found that a form of vitamin B3 known as nicotinamide riboside demonstrated ability to preserve brain cells. The nutrient appears to work by improving the function of the energy centers within brain and nervous system cells. A typical dose is between 2 and 17 grams daily, although more may be needed for those already experiencing Parkinson’s disease.

PROBIOTICS

Because the gut-brain link is strong, it’s no surprise that a recent study discovered that supplementing with probiotics could be helpful for people with Parkinson’s disease. Published in the medical journal Clinical Nutrition, researchers found that regular supplementation with probiotics helped reduce harmful markers for the disease while enhancing beneficial compounds in the body, as well as improving peoples’ scores on a Parkinson’s disease rating scale. While additional research will be necessary to determine the best strains to take, because probiotic supplementation has so many benefits, you may wish to supplement with a broad-spectrum supplement while awaiting the outcomes of further studies.

14 Lifestyle Choices to Slow Aging

Good genes are one thing, but you can also help game the system and age gracefully with these healthy lifestyle choices.
In the year 2000, the United States was home to 35 million people who were 65 and older; in 2016, that number was 49.2 million. And it’s an upswing that is expected to continue, according to the Census Bureau. That the baby boomers are growing older is no surprise – they began turning 65 in 2011 and will continue to do so for many years to come, says Peter Borsella, a demographer in the bureau’s Population Division.
Which drives home the point that much of the population is getting on in years (in fact, we all are!). Add to that the fact that we are living longer, and the enormity of costs and resources in providing care starts to loom pretty largely. So here’s an idea, let’s all do what we can to stay as healthy as possible. Besides, who doesn’t want to age slowly and gracefully?
We’ve all known a super-ager or two, those people who maintain a youthful brain and body well into their older years. And while it may seem like we can chalk that up to a lucky win of the genetics lottery, there is actually a lot we can do to slow the aging process and fend off disease. As Casey Seidenberg points out in the Washington Post, “the brain remains alert when it is elastic and rested; energy levels stay high when we balance blood sugar and hormones and maintain muscle mass; and we prevent disease when we preserve gut and immune health.”
So how we do that? The Post lays out a plan and we’ve added a few of our own, in no particular order.

1. EAT OMEGA-3 FATTY ACIDS.

These nutrients found in foods such as fish and flaxseed are important components of the membranes that surround each cell in your body. They have been shown to boost brain function, decrease inflammation, build and repair cell membranes, and aid with stress management, while also staving off other issues. Find omega 3s in nuts and seeds, like flaxseed, chia seeds, and walnuts, as well as their oils.

2. DRINK ENOUGH WATER.

You know the drill: Drink 8 glasses of water a day. While there may be some debate about that number, the National Academies of Sciences, Engineering, and Medicine determined that an adequate daily fluid intake is:
• About 15.5 cups (3.7 liters) of fluids for men
• About 11.5 cups (2.7 liters) of fluids a day for women
Seidenberg notes that dehydration can cause fatigue, foggy thinking, headaches and constipation, all signs of aging, adding that “a hydrated brain is a healthier brain, and as we get older it becomes more difficult to absorb nutrients in the gut, and a hydrated gut is a healthier gut, too.” 

3. DON’T FORGET YOUR B VITAMINS.

The family of B vitamins is a great supporter for cognitive function and other protective measures as well. While the big three: Folate, B6 and B12 are the golden triplets, all B vitamins are important. The Harvard School of Public health notes, “Most healthy adults get sufficient B12 from their regular diet. However, it’s common for older people to have some level of B12 deficiency. This might stem not only from a poor diet, but also from age-related reduction in stomach acid, which the body needs in order to absorb B12 from food.”
Stress and heartburn medication can also block vitamin B absorption. According to Harvard, these are some good food sources:

Folate

Fruits and vegetables, whole grains, beans, breakfast cereals, and fortified grains and grain products. It’s best to avoid foods that are heavily fortified with folic acid.

Vitamin B12

Animal products (such as fish, poultry, meat, eggs, or dairy); it is also found in fortified breakfast cereals and enriched soy or rice milk.

Vitamin B6

Fortified cereals, beans, and some vegetables and fruits, especially dark leafy greens, papayas, oranges, and cantaloupe.

4. KEEP YOUR BRAIN BRAWNY.

The average brain shrinks by approximately five percent every decade after the age of 40; but aerobic exercise significantly helps maintain volume. “When you exercise you produce a chemical called brain-derived neurotrophic factor (BDNF), which may help to prevent age-related decline by reducing the deterioration of the brain,” says Joseph Firt, author of a study on the subject.
In this study, exercise included stationary cycling, walking, and running on a treadmill, two to five times a week, for durations ranging from three to 24 months. Along with improving regular healthy aging, exercise has implications for the prevention of aging-related neurodegenerative disorders such as Alzheimer’s and dementia. 

5. KEEP YOUR BRAIN ACTIVE.

Researchers have found that brainy activities stimulate new connections between nerve cells and may even help the brain generate new cells, developing neurological “plasticity” and building up a functional reserve that provides a hedge against future cell loss, explains the Harvard Medical School. They write: “Any mentally stimulating activity should help to build up your brain. Read, take courses, try “mental gymnastics,” such as word puzzles or math problems.
Experiment with things that require manual dexterity as well as mental effort, such as drawing, painting, and other crafts.” Sounds fun for any age.

6. DEVOUR DELICIOUS ANTI-AGING FOODS.

Research continues to shine the light on particular foods that appear to have anti-aging potential. Mushrooms are one, see: Mushrooms found to be unusually packed with anti-aging potential. Likewise, blueberries could help fight Alzheimer’s disease.

7. EMBRACE MUSCLE MASS.

By the time we hit 50, the average adult will lose 15 percent of lean body mass, which is replaced with fat mass – and it’s an unfortunate swap that continues with the years. Sigh. A higher fat mass opens the door for things like diabetes and heart disease.
Less muscle also means one is more likely to falling. Seidenberg writes that adequate protein throughout the day can help, noting that beans, nuts, seeds, wild fish, chicken and avocado can be key as the body ages. “Weight-bearing exercise and yoga support muscle strength and flexibility,” she adds.

8. KEEP YOUR GUT HAPPY.

Most of the immune system lives beneath the gut lining, so keeping the gut healthy is crucial for keeping the immune system strong to fight disease. Delara Tavikoli, an age management specialist, recommends bone broth “as it is one of the most easily absorbable and nourishing foods, full of collagen, protein and minerals.” For plant-based options, fermented foods are great for gut and immune health. More sauerkraut and kimchi please!

9. REMEMBER YOUR C AND E.

Vitamins C and E, as well as other antioxidants found in the ol’ rainbow of fruits and vegetables, all work to support the immune system. A good source of vitamin E is nuts and seeds; C is abundant in citrus, peppers, kiwi fruit and more.

10. REMEMBER THE VIRTUES OF VITAMIN D.

Not only do many people spend less time in the sun as they age, but our ability to synthesize the “sunshine vitamin” through the skin decreases with time as well. D is important for the immune system, fends against cancer, and is good for bone and heart health.

11. WATCH THE CARBS AND SUGAR.

Spikes and crashes from sugar and simple carbs cause dips in energy and mood, cravings for sugar and carbohydrates, interrupted sleep and speedier aging, notes Seidenberg. “Imbalanced blood sugar is also a precursor to diabetes, which is linked to many other diseases,” she writes. So, she advises skipping processed foods and sugars and waiting a few hours between meals to allow blood sugar to balance.
She also points out the favorite secret weapon of keto dieters: Fiber helps to balance blood sugar. In general, the more we learn about sugar, the more it seem prudent to consume as little of it as possible on a regular basis.  

12. DON’T FORSAKE THE HEALTHY FATS.

As we emerge from the “Fat Is Bad” era, the dawning of a new age is upon us, one in which we can fill our hungry bellies with glorious fat! Not only do healthy fats satisfy hunger so well, but they have a host of other benefits, like building healthy hormones. So, fill up on avocados, salmon, nuts, seeds, olives, olive oil, eggs, et cetera. Just remember that while they are healthy, they are also caloric.

13. SPEND TIME WITH THE TREES.

This is good for anyone, of any age. Nature does wonders for the brain and spirit. Japanese researchers have found that forest environments promote lower concentrations of cortisol, lower pulse rate, lower blood pressure, greater parasympathetic nerve activity, and lower sympathetic nerve activity than does spending time in urban areas.
 14. FEED YOUR HORMONES WITH HAPPY THOUGHTS.
Dark thoughts and a negative attitude prompt stress hormones, which work against hormone and neautotransmitter health. The fix here? Think happy thoughts. The world record for the longest confirmed human lifespan belongs to French supercentenarian, Jean Calment, who lived for 122 years and 164 days.
How did she do it?
She ascribed it to a diet rich in olive oil, port wine and two pounds of chocolate every week – bless that woman. Plus, a set of calm nerves, of which she explained, “That’s why they call me Calment.” So remember that when all else fails, keep calm and carry on.