Friday 8 May 2015

Health Benefits of Sunlight

As prolonged exposure to the sun can cause sunburn, skin aging and even skin cancer, many people prefer to stay at home and avoid sunlight. But not completely reject the sun. Limited sun exposure has numerous health benefits.
Sunlight is the easiest and safest way to get vitamin D from the "sunshine vitamin" - which is almost as vital to life as oxygen. When exposed to sunlight, the body produces vitamin D.
But, it is not necessary to tan or burn the skin for vitamin D. Sun exposure makes the skin a little red produces the equivalent of 10,000 to 25,000 IU of vitamin D in the body.
Vitamin D in the body behaves more like a hormone than a vitamin. Plays an important role electrolyte metabolism, protein synthesis, immunity, nerve and muscle function, and a number of other physiological processes.
Sunlight has many health benefits, but enjoyed in moderation.

    
Exposure to the sun in the morning of 10-15 minutes (without sunscreen) is a good choice.
    
Avoid direct sunlight during peak hours of the day 10 am to 4 pm
    
If you need to be exposed to the sun during peak hours, apply sunscreen on exposed parts of the body, wear appropriate clothing and wear a hat or use an umbrella.
Here are some health benefits of sunshine.1. Increases immunity
Sunlight the immune system is based. When exposed to sunlight, the body produces vitamin D to support the proper functioning of T cells that contribute to the immune defenses. A strong immune system defends the body against invading, foreign agencies.
Vitamin D has been found to help modulate the innate and adaptive immune responses. Moreover, vitamin D deficiency seems to be associated with increased susceptibility to infection and many autoimmune diseases.2. Supports Healthy Bones
For healthy and strong bones, sunlight is necessary. Helps the body produce vitamin D that stimulates calcium absorption for strong bones. This leads to reduced risk of bone diseases, fractures and osteoporosis.
According to a 2004 study published in the journal of the American Society for Clinical Nutrition, vitamin D deficiency causes rickets in children, exacerbates osteoporosis in adults and causes the painful bone disease osteomalacia.
Furthermore, a high level of vitamin D in the body is associated with a lower rate of virtually all types of fractures.3. Rejuvenates Aging Eyes
According to a 2012 study published in the journal Neurobiology of Aging, vitamin D3 plays a key role in preventing macular degeneration associated with age, which is the most common cause of blindness in the elderly. Helps aging eyes by reducing inflammation, clearing beta amyloid and improving visual function.
For eye health, you do not have to look directly at the sun. Follow these steps.

    
Stand on a sunny early morning. Do not wear contact lenses or glasses.
    
Close your eyes and allow sunlight to fall on the eyelids.
    
Feel the warmth of the sun in his eyes and slowly move your eyes up and down, from right to left, to the right and to the left.
    
Do this for five minutes, then palms for another 5 minutes.
    
Do this once a day.
Note: Avoid prolonged exposure to sunlight, as it may contribute to the development of cataracts.4. Metabolism Improvement
Sunlight can help maintain a healthy weight, accelerating your metabolism rate. A 2014 study published in the journal Diabetes found that ultraviolet radiation (UV) suppresses obesity and metabolic syndrome symptoms regardless of vitamin D.
Further research showed that nitric oxide (a compound that releases the skin after sun exposure) had obesity and diabetes-like effects slowdown. Researchers believe that nitric oxide may have beneficial effects on how the body regulates metabolism.
Moreover, vitamin D deficiency may contribute to the accumulation of fat.5. Improves Sleep Quality
Exposure to natural light helps keep your sleep-wake cycle. Exposure to sunlight, the optic nerve sends a message to the gland in the brain that produces melatonin, a hormone associated with sleep onset.
The gland secretes melatonin least during the day. As soon as it's dark, the increased production starts. Low levels of melatonin are linked to poor sleep quality.
In addition, sunlight helps regulate circadian rhythms to a better night's sleep. The circadian rhythm is a 24-hour cycle that regulates the biochemical, physiological and behavioral processes that control your sleep cycle.6. relieves mild depression
Regular sun exposure can naturally increase serotonin levels in the body to help reduce stress and combat mild depression.
Serotonin is a neurotransmitter that regulates appetite, sleep, memory and mood. In addition, serotonin plays a role in susceptibility to depression and suicide.
Deprivation of sunlight is often associated with depression and seasonal affective disorder (SAD), a form of depression that occurs most often during the winter months. Therefore, exposure to sunlight can help improve these conditions.
Moreover, a 2002 study published in the Lancet also suggests that sunlight and season have a positive effect on the turnover of serotonin in the brain.

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