Advertising
Advertising

Being Overweight May Age Your Brain By 10 Years, Study Finds

Being Overweight May Age Your Brain By 10 Years, Study Finds

You already know being overweight isn’t healthy. It can cause tons of problems, especially later in life. But did you know a study done by the journal Neurobiology of Aging actually took brain scans of overweight and slim people, compared them, and found the overweight people’s brains showed signs of being 10 years older?

Let’s back up. Science proved a long time ago that the white matter in our brain shrinks as we age. This white matter contains connecting branches called axons. These connect neurons together, which is referred to as the “cerebral highway” because there are so many pathways going across your brain where electrical impulses travel as the different parts of your brain communicate.

Advertising

The Study

Researchers recruited 527 volunteers aged 20 to 87. Each one was classified as either “lean” or “overweight” depending on their body mass. After scanning the brains of all participants, the study authors found that from middle-age onwards, the brains of overweight people tended to shrink more than those in the lean group.

Most of the overweight participants’ brains showed as much shrinkage as lean participants’ brains which were 10 years older. The study’s co-author, Lisa Ronan, explained in a statement that “it isn’t clear why people who are overweight have a greater reduction in the amount of white matter,” adding that “we can only speculate on whether obesity might in some way cause these changes or whether obesity is a consequence of brain changes.”

Advertising

What Science Shows

Unfortunately, the researchers aren’t sure exactly what causes this effect. They think it may have to do with inflammation. As we get older, we experience higher levels of oxidative stress, which is the production of certain molecules that cause damage to body tissues. Previous studies have shown that this often leads to inflammation, which in turn causes the loss of white matter.

The buildup of fatty tissue causes inflammatory compounds called cytokines to release alongside inflammatory hormones like leptin. Researchers believe this may partially explain the reason behind obesity causing such extreme signs of aging.

Advertising

Thankfully, despite the loss of white matter, overweight people didn’t appear to have lost any cognitive capabilities — meaning they had no problem thinking like everyone else. They also performed just as well as lean people of the same age on IQ tests.

So if you’re overweight, you may want to start thinking about changing your diet and getting proper exercise. Even without shrinkage of your white matter, there are many other consequences of remaining at a high weight. If you need some help getting started, Lifehack has a great goal-setting program to help motivate you to stick to your goals.

Advertising

More by this author

Bill Widmer

Content Marketing Expert

10 Signs You’re A Highly Rational Thinker Do You Know The Meaning Of Fruit Stickers? They Can Hugely Affect Your Health Still Believe Long Workout Is Good For Your Heart? You Should Exercise In This Way Instead! Uncertainty Makes You Anxious? 3 Ways To Face The Future With Confidence Easily Feel Drained? Beware Of These 10 Energy Suckers

Trending in Fitness

1 7 Amazing Things That Will Happen When You Do Plank Every Day 2 The Ultimate Workout Routine for Men (Tailored for Different Fitness Level) 3 The Most Critical Do’s and Don’ts of Working Out While Pregnant 4 The Truth Behind Rapid Weight Loss and the Best Way to Shed Pounds 5 7 Killer Upper Back Stretches to Reduce Pain and Boost Endurance

Read Next

Advertising
Advertising

Last Updated on October 18, 2018

10 Benefits of Sleeping Naked You Probably Didn’t Know

10 Benefits of Sleeping Naked You Probably Didn’t Know

Sleeping is one of the most important things we do every night.

Getting the right amount of sleep has an untold number of health benefits and not getting enough sleep is a serious problem in many countries around the world.

So you should have heard of the many benefits of getting adequate sleep, but did you know that you can get additional benefits by sleeping naked?

Here are some benefits of sleeping in the nude:

Advertising

Video Summary

1. It is easier.

When you don’t have to worry about sleeping in clothes, things start to get easier. You don’t have to buy pajamas, which can save you money. You have less clothes to wash and less clothes to put away. You may have to clean your bed sheets more often, but not nearly as often as you’d have to wash your pajamas when you run out.

2. It forces you to be ready to go more often.

Some people get off of work, change into their pajamas, and use this as an excuse to stay home the rest of the evening. This can lead to a more sedentary lifestyle, which has been attributed to things like weight gain.[1] When you keep your regular clothes on, you tend to go out more often and that’s a good thing.

3. It can make you feel happier and more free.

Just imagine the feeling of laying in bed naked. You’re free of your pants and underwear. Women, you’re not wearing a constrictive bra. It’s just you sandwiched between two cool sheets. The feeling just makes you want to smile and it makes you feel more free. Everyone can use that kind of good feeling every now and then, and it may even help you be happier as a person.

4. Skin-on-skin contact is the best.

Advertising

    If you’re married, or living with your significant other, sleeping naked gives a greater chance of skin-on-skin contact, especially when it comes to cuddling. This kind of contact can also lead to a more active sex life. All of this releases copious amounts of oxytocin, which is the neurotransmitter that helps you feel those good feelings about your significant other.[2]

    5. It could lead to better sleep.

    Let’s revisit the scenario I described above. There are no drawstrings or clothes getting tangled in sheets. You don’t have to worry about shirts getting twisted. All of these distractions go away when you sleep naked and it may help you get better, deeper sleep. You don’t need science to tell you that better, deeper sleep only helps you be healthier.

    6. It can help your skin.

    For once your body gets to breathe. Your private parts, armpits, and feet are generally restricted all day and are often covered by multiple layers, even in the summer time. Give those parts a chance to air out and breathe. This can lower the risk of skin diseases, like athlete’s foot, that result from wet, restricted skin.[3]

    7. It helps you regulate your cortisol.

    Cortisol is a very strange chemical in the body but it can do a lot of damage. When you sleep naked, it helps keep your body temperature at the optimal ranges so your body can better create cortisol. If you sleep overheated your cortisol levels tend to stay high, even after you wake up. This can lead to increased anxiety, cravings for bad food, weight gain, and more terrible things.[4] Sleep naked so you can keep your body temperature down and sleep well so your body can properly produce and regulate cortisol.

    Advertising

    8. It balances your melatonin and growth hormone.

    Continuing along that same vein, keeping your sleeping environment below 70 degrees (F) every night can help your body regulate its melatonin and growth hormone levels. These chemicals help the body do things like prevent aging and are essential to good health. When you sleep in clothes, your body heats up and prevents effective use of these hormones. In other words, sleeping with clothes on makes you grow old faster.

    9. It can keep your sex organs happier.

    For men, the cooler sleeping conditions allows your testes to remain at a cooler temperature. This helps keep your sperm healthy and your reproductive systems functioning as normal. For women, the cooler and more airy sleeping conditions can actually help prevent yeast infections. Yeast grows better in warm, moist conditions.[5] When it’s cooler and dryer, the growth of yeast is prevented.

    10. Sleeping in the summer is more bearable.

      Summertime is a tricky time to get good sleep. If you don’t have air conditioning, then you may find your bedroom a bit stuffy at night.

      Advertising

      Shedding those bedtime clothes can help the bedroom feel more comfortable. You may even be able to turn the A/C off on those cooler nights, which can save you a few bucks on your electricity bill.

      Don’t wake up drenched in sweat again because your thermostat is downstairs and the hot air expands up to your bedroom where the thermostat can’t read the warm temperatures.

      Sleep well with your naked body!

      With these tips in mind, it’s time to start taking off your clothes at night!

      Of course, there are times where clothes are preferable. If you are ill or it’s cold outside, then you should sleep with clothes on to help you stay warm and prevent further illness. Otherwise, go commando!

      If you’re looking for more tips to sleep well and get up feeling energetic, I recommend you to check out this guide:

      Want to Feel More Energized Throughout the Day? Start With This

      Reference

      Read Next