Tag: sleep

  • Why You Should Care About Free Radicals

    Why You Should Care About Free Radicals

    Did you ever wonder why apple slices start to turn brown when you leave them out on the picnic table?

    Or why unprotected metal left outside will start to rust?

    Here’s the reason: free radical damage.

    Free radicals are rogue oxygen molecules that are missing an electron, and will, therefore, attack anything in sight in search of a missing mate. The damage they do is called oxidative damage, or oxidation. It’s what happens to the apple slices, it’s what happens to the rusting metal, it’s what happens to your skin when exposed to too much sun, and it happens in your body—to every cell, to every organ, even to your DNA.

    Dr. Sinatra and I identified oxidative damage as one of the four major promoters of heart disease in our book, “The Great Cholesterol Myth”. Dr. Traylor and I identified oxidative damage as one of the major causes of aging in

    Oxidative damage (i.e. free radical damage) is no joke. There’s even a theory called “The Free Radical Theory Of Aging” that holds that aging is nothing more than “rusting from within.” Even cholesterol doesn’t become a problem in the body until it’s oxidized.

    The free radicals that cause all this oxidative damage can come from many things. Oxygen, certainly. But also toxins, household cleaners, pesticides, cigarettes, and air pollution. Your first action should be to limit your exposure to things that are obviously toxic (i.e. cigarettes and car exhaust and chemicals).

    Foods can also be potent sources of free radicals, especially fried foods, and especially meat that’s barbequed at high heat. Tip: Marinate the meat in a rich mix of spices, and barbeque at a lower heat. And instead of fried foods, load up your plate with antioxidant-rich berries, dark chocolate, nuts, beans, and leafy vegetables. Even if you still eat the French fries, those antioxidants will help mitigate some of the damage!)

    Anti-oxidants do exactly what their name implies—they are the antidote to oxidative damage. We all know the important dietary antioxidants–  Vitamin C, Vitamin E, and so on – but an even more important antioxidant is made in the human body and can’t be effectively obtained from supplements or diet. It’s called glutathione.

    Two other tips to help your body rid itself of excess free radicals:

    1. Top off your glutathione levels. Glutathione is the body’s master antioxidant. It mops up free radicals better, faster, and more effectively than just about any other substance. The body makes glutathione on its own, but as we age, our enzymes that make glutathione get weaker. There have been attempts over the years to make oral glutathione supplements, but for the most part, they haven’t been effective.

    Thankfully science is always evolving, and now there’s a safe way to prompt your body to make more. Glyteine, available in Continual-G products, works as a molecular signal that prompts the body to start producing more glutathione. In a couple of hours, you’ll have more glutathione in your cells, which is exactly where it’s needed.

    2. Upgrade your sleep. A lot of really important things happen when you sleep, and bad things happen if you are sleep deprived. It turns out that one of the major things that happen during sleep is the repair of oxidative damage. Even the most powerful antioxidants on the planet won’t be put to full use if you’re not getting enough sleep and if you’re not getting good quality of sleep. That’s why it’s especially important right now to keep a consistent sleep schedule.

    And if you’re not getting enough sleep and would like to extend your time in bed—and who wouldn’t—there’s a “right” and a “wrong” way to do it. Contrary to popular opinion staying in bed later doesn’t work nearly as well as going to bed earlier. Try adding sleep time by going to bed a half-hour earlier every night for a week, and when you’re acclimated to that, add another half-hour.

    Your metabolism, your mental health, and your waistline will all thank you.

  • Melatonin: So Much More Than A Sleep Aid

    Melatonin: So Much More Than A Sleep Aid

    Here’s a riddle for you: Why do blind women get breast cancer at about half the rate that sighted women do?

    We think it has to do with two things: light, and a hormone called melatonin.

    Most people who have heard of melatonin know it as a supplement that can help with sleep (which it definitely can). And it’s great for jet lag. But the melatonin story is a lot more interesting– and complicated– than its ability to serve as a natural cure for insomnia.

    Melatonin may have a role in protecting you against cancer. It also supports the immune system and is one of the most powerful antioxidants we know of. It protects cell membranes even more than vitamin E does, and is more effective than glutathione (an important antioxidant in the body) at neutralizing a deadly free radical that causes oxidative damage, hydroxyl radicals.

    So although melatonin is not by itself a miracle anti-aging supplement, it helps protect against a number of age-robbers.

    Take sleep, for example.

    During sleep, a great deal of cellular damage that occurs during the day is repaired and that repair process is initiated by secretions of melatonin. And because disturbed sleep so often accompanies aging, anything that can help us sleep better (with ancillary benefits to boot and no side effects) might be something to take note of. Melatonin definitely fits the bill.

    Poor sleep quality reduces the secretion of growth hormone, an important hormone that helps us keep muscle and lose fat. It may also raise levels of stress hormones such as cortisol.Lack of rest or disruption of normal sleep patterns can increase hunger, leading to obesity-related illnesses and accelerated aging. Because melatonin is so helpful in getting a good night’s sleep, the use of melatonin as a supplement may have far-reaching consequences for many of the conditions that interfere with healthy aging.

    And if all this weren’t enough, melatonin may also be good for the heart. Researchers tested melatonin supplements on women aged forty-seven to sixty-three and found that supplementation improved the “day-night” rhythm of blood pressure, significantly decreasing nighttime blood pressure.

    “Melatonin, in addition to being an incredibly powerful antioxidant, may well turn out to be cardio-protective”, says Beth Traylor, MD, of Cenegenics Medical Institute.

    Melatonin is a hugely important hormone with many overlapping benefits. virtually everyone over the age of forty doesn’t make enough, and taking a little extra doesn’t seem to have any negative side effects.

    Melatonin has been used successfully as a supplement for sleep in doses from as low as 0.1 mg to as much as 10mg.

  • Infographic: Heart-Healthy Moving Advice

    Infographic: Heart-Healthy Moving Advice

    Heart-Healthy Moving

    Infographic design and illustration by Kena Ravel for MyMove

  • Skipping Sleep Can Lead to Diabetes

    Skipping Sleep Can Lead to Diabetes

    A study in the journal Science Translational Medicine found that not getting enough sleep, or getting poor-quality sleep, can make you fat and eventually lead to diabetes.

    Unlike past epidemiological studies, this one looked at people sequestered in a lab over a six-week period. Doing this allowed researchers to mimic third-shift work, jet lag, and other conditions that prevent a quality, full night’s sleep.

    In other words, by keeping these 21 brave participants tightly confined, researchers could control how many hours of sleep they got, when they slept, as well as other factors like diet and exercise. It wasn’t like they could slip off for a nap or anything.

    At the beginning of this six-week study, researchers allowed participants about 10 hours of sleep every night.

    Nice, right? Sign me up!

    But not so fast. Researchers eventually cut back participants’ sleep to less than six hours over a 24-hour period.

    Even more challenging, they rotated these six hours over different times of day and night to disrupt circadian rhythm, much like a hospital worker or someone flying to a different time zone might get inconsistent sleep.

    After suffering weeks of aberrant sleep patterns, researchers concluded the study by allowing participants plenty of recovery sleep.

    Regardless, these sleep-deprived people showed higher blood sugar levels, which can lead to obesity and diabetes. Even though they recovered, those weeks of not getting quality, consistent rest took its course.

    “The evidence is clear that getting enough sleep is important for health,” said lead author Dr. Orfeu M. Buxton, “and that sleep should be at night for best effect.”

    I know how easy it is to say this and yet how few people get seven to nine hours of high-quality, consistent sleep every night.

    More likely, you’re staying up late to meet deadlines, awakening at 3 a.m. with the next day’s business on your mind, or tossing for hours and hopelessly glancing at your alarm clock.

    To change those patterns, you need to prepare for sleep. About an hour before bed, shut down electronics and other stimulation, and unwind with a cup of tea and maybe a hot bath.

    Sleep is actually one of the seven key principles for living longer and living better covered in my DVD  7 Pillars of Longevity »

    Developing better sleeping patterns might require a natural sleep aid. One of my favorites is melatonin, a hormone your brain’s pineal gland produces to regulate sleep, circadian rhythm, and your body’s internal clock.

    Especially as you get older, your brain makes less melatonin. If you occasionally suffer from jet lag, have aberrant sleeping patterns, or just can’t get a good night’s rest, melatonin might be your ticket.

    A meta-analysis in the Cochrane Database of Systematic Reviews  found melatonin safe and remarkably effective to reduce or eliminate jet lag.

    And a study in the Journal of Sleep Research found that melatonin could help night-shift workers sleep better during the day.

    My favorite melatonin supplement comes from Designs for Health.

    This high-quality melatonin has vitamin B6 to aid the conversion process, contains no cheap fillers or binders to inhibit efficacy, and comes from one of the best, most ethical supplement companies in the world.

    Best of all I think it is only $11 for a 60 day supply.

    Nothing is more important than a good night’s sleep, so take the very best melatonin to help you get there.

  • Want to Burn More Fat? Spend More Time in Bed!

    Want to Burn More Fat? Spend More Time in Bed!

    A study in the journal Sleep found that getting adequate sleep could help you overcome a genetic predisposition towards being overweight.

    The study looked at 1,088 pairs of twins. Researchers learned those who slept less than seven hours a night had a higher body mass index (BMI), one measure of being overweight or obese.

    What’s more, genes influenced about 70% of that high BMI. (The other 30%, in case you were wondering, involved environment.)

    On the other hand, for twins who got more than nine hours’ sleep, genes contributed only about 32% to higher BMI.

    In other words, sleep determined how much genes influenced these twins being overweight.

    “The results suggest that shorter sleep provides a more permissive environment for the expression of obesity related genes,” said lead researcher Dr. Nathaniel Watson. “Or it may be that extended sleep is protective by suppressing expression of obesity genes.”

    If you keep up with science, you’ll know genetics are the next big thing for fat loss and ultimate health. You can now take tests, for instance, that look at your genetic DNA profile to determine your ideal diet, nutrient needs, and exercise regimen.

    But I think this study proves a valuable point beyond genetics: sleep matters for fat loss.

    Indeed, too many people coast by on five hours’ sleep and caffeinate themselves the next morning with a big vat of Starbucks. But as you’ll see, that’s a recipe for terrible health and gaining fat.

    That’s because too little sleep knocks your hormones out of whack. Let’s take a look at five hormones that sleep impacts:

    1. Ghrelin – this is your hunger hormone: it tells your brain to eat. When you get a crappy night’s sleep, you crank out more ghrelin. Couple that with lack of judgment from being so tired, and you can see why you’re mindlessly devouring a Starbucks Danish that you didn’t even want.
    2. Leptin – leptin tells you to stop eating. In other words, it has the opposite effect of ghrelin. When you don’t sleep well, you become more leptin resistant so your brain doesn’t get the message as effectively.
    3. Insulin – insulin is your ultimate fat-storing hormone. Chronically elevated insulin makes fat burning almost impossible. Guess what? A few nights of terrible sleep can make your cells insulin resistant, leading to higher insulin levels.
    4. Human growth hormone (GH) – this “youth” hormone prevents aging, builds muscle, and helps fat burning. Lack of sleep means you make less GH.
    5. Cortisol – cortisol is your stress hormone. Couple a crappy night’s sleep with rush-hour traffic and an irate boss, and you’ve got a recipe for chronically elevated cortisol levels.

    Get what I’m saying now about poor sleep adversely affecting your hormones? It all adds up to a dismal picture for fat burning and feeling your best.

    I know getting a good night’s sleep is easier said than done. I want to leave you with three tips to prepare for a good night’s sleep so it happens more often:

    1. Cut off the stimulation and power down. About an hour before your bedtime, turn off your laptop, TV, and other distractions. Take a hot bath, drink some chamomile tea, meditate, or do whatever works for you to unwind.
    2. Stop eating about three hours before bed. Those late-night Haagen-Dazs freezer raids aren’t doing anything for sleep or your waistline. Close the kitchen after dinner for better sleep and fat burning.
    3. Try a natural sleep aid. Everyone needs a little help falling asleep sometimes. If you suffer jet lag or are trying to adjust to a new time zone, melatonin could be your answer to fall and stay asleep.