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10 Amazing Health Benefits of Sun Exposure

10 Amazing Health Benefits of Sun Exposure

It is not just plants that absorb and metabolize sunlight. Human beings do it too. However, the relationship between sun exposure and health in humans isn’t as straightforward as we might want it to be. Genes are a factor of how humans metabolize sunlight; as is skin type. For instance, people with pale skin that burns easily in the sun are likely to get skin cancer if exposed to too much sun. The timing and duration of exposure is also a crucial factor when it comes to how our bodies metabolize sunlight.

That being said, a number of scientists suggest that the health benefits of moderate sun exposure may in fact outweigh the risks. Researchers from the University of Edinburgh in the UK, for example, specifically point out that the heart-health benefits of sun exposure far outweigh the risk of developing skin cancer. Here are ten huge health benefits of moderate sun exposure you absolutely should know about.

1. Sun exposure lowers blood pressure.

In a landmark study, a group of researchers at the University of Edinburgh found that a compound called nitric oxide that helps lower blood pressure is released into the blood vessels as soon as sunlight touches the skin. This finding was important because until then it was thought that sunlight’s only health benefits to humans was to stimulate production of vitamin D. Richard Weller, Senior Lecturer in Dermatology, and colleagues, however, found that sun exposure can not only improve health, but also prolong life. That’s because the benefits of lower blood pressure include cutting risk of heart attacks and strokes. These benefits, says, Weller “far outweigh the risk of getting skin cancer.”

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2. Sun exposure improves bone health.

It is a well known fact that vitamin D stimulates the absorption of bone-strengthening calcium and phosphorus in the body. However, emerging research also indicates there is a direct correlation between bone density and vitamin D3. Vitamin D3 is a fat-soluble vitamin formed during the process of Vitamin D manufacture when sunlight hits the skin. It regulates calcium absorption. When you have higher levels of vitamin D3 in your blood, you are at a lower risk of suffering fractures of virtually all types. On the other hand, lower levels of vitamin D3 in the blood are associated with higher rate of all types of fractures. This is why sun exposure is especially important for bone health in older adults.

3. Sun exposure improves brain function.

Aside from promoting bone health and regulating vital calcium levels, scientists have now linked vitamin D with a number of functions throughout the body, including the functioning of the brain. One study led by neuroscientist David Llewellyn of the University of Cambridge, assessed vitamin D levels in more than 1,700 men and women from England, aged 65 or older and found that cognitive function reduced the lower the subjects’ vitamin D levels were. However, more studies have found sunlight could help spur nerve cell growth in the hippocampus, which is the part of the brain responsible for forming, organizing and storing of memories.

4. Sun exposure eases mild depression.

Sunlight deprivation can cause a condition called seasonal affective disorder (SAD). SAD is a form of depression common in the winter months. It is also common in people who work long hours in office buildings and hardly get out for some sun. Moderate sun exposure, however, increases levels of natural antidepressants in the brain that can actually help relieve this and other forms of mild depression. That’s because on sunny days the brain produces more serotonin, a mood-lifting chemical, than on darker days.

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5. Sun exposure improves sleep quality.

When sunlight hits our eyes, a message is sent to the pineal gland in the brain and production of melatonin (a hormone that makes us drowsy and helps us sleep) is shut down until the sun goes down again. Your body gets a clear signal that it’s no longer night and this helps to maintain a normal circadian rhythm. When it gets dark outside, your body gets the signal again and you feel tired and drowsy at bedtime. Low levels of melatonin production at night due to overproduction during the day has been linked to poor sleep quality, especially in older adults. Ditch the sunglasses early in the morning when you wake up if possible so your body gets the message that it is day and triggers the pineal gland to stop releasing melatonin.

6. Sun exposure lessens Alzheimer’s symptoms.

Clinical research has shown Alzheimer’s patients who are exposed to the sun throughout the day from 9 a.m. to 6 p.m. followed by darkness at night score better on mental exams and improve some aspects of the disease. For example, one study published in the Journal of the American Medical Association found that Alzheimer’s patients exposed to bright light had fewer symptoms of depression, nighttime wakefulness, agitation and lost less function than those exposed to dim daytime lighting. The researchers attributed these improvements to more regular circadian rhythms.

7. Sun exposure heals some skin disorders.

Sunlight promotes healing of skin disorders, such as acne, psoriasis, eczema, jaundice and other fungal skin infections. In one study, for example, a four-week outdoor sunbathing therapy was successfully used to significantly clear symptoms of psoriasis in 84% of subjects. While sun exposure has a therapeutic effect on the skin and sunlight has been successfully used to treat skin disorders, this alternative treatment method should be done under medical supervision to prevent negative side-effects of UV radiation and to ensure the benefits outweigh the risks.

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8. Sun exposure boosts growth in children.

This benefit is especially true for infants. Studies reveal the amount of sun exposure in the first few months of a baby’s life has an effect on how tall the child grows. Many cultures around the world recognize this fact and expose children to mild sun to boost growth and height.

9. Sun exposure enhances the immune system.

Sun exposure can help suppress an overactive immune system, which could explain why sunlight is used to treat autoimmune diseases like psoriasis. And since white blood cells increase with sun exposure and they play a key role in fighting diseases and defending the body against infection, moderate sun exposure is very helpful for your immune system.

10. Sun exposure reduces risk of certain cancers.

Vitamin D deficiency increases your risk of many cancers, especially breast and colon cancer. However, eating whole foods and getting some sun can send breast cancer into remission. This connection was first made by Drs. Frank and Cedric Garland from the University of California who observed that the incidence of colon cancer was nearly three times higher in New York than in New Mexico. Subsequent studies have since shown vitamin D supplementation produce a dramatic 60% drop in risk of developing any form of cancer. This confirms the benefits of vitamin D and sun exposure in reducing risk of cancer.

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Bottom line:

Sunshine does have its benefits, but it’s still the number one cause of skin cancer. Experts recommend no more than 15 to 20 minutes of direct sunlight daily for a healthy adult. After that, apply sunscreen with a minimum Sun Protection Factor (SPF) of 30. Remember skin color, where you live and how much skin you expose to the sun affect how much vitamin D you can produce.

Featured photo credit: Luci Correia via flickr.com

More by this author

David K. William

David is a publisher and entrepreneur. He is also the founding editor of Web Writer Spotlight.

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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:

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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.

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    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.

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    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.

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      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

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