Top 10 Health Benefits of Sunlight
1. Boosts Immunity
Sunlight builds the immune system. When exposed to sunlight, the body makes vitamin D to support proper functioning of the T cells that contribute to immune defences. A strong immune system defends the body against foreign, invading organisms.
2. Rejuvenate Aging Eyes
According to a 2012 study published in the journal Neurobiology of Aging, vitamin D3 plays a key role in preventing age-related macular degeneration, which is the most common cause of blindness in the elderly. It helps aging eyes by reducing inflammation, clearing amyloid beta and improving visual function.
3. Improves Sleep Quality
Exposure to natural daylight helps maintain your sleep-wake cycle. With exposure to bright sunlight, the optic nerve sends a message to the gland in the brain that produces melatonin, a hormone associated with sleep onset.
4. Supports Healthy Bones
For healthy and strong bones, sunlight is necessary. It helps the body produce vitamin D that stimulates the absorption of bone-strengthening calcium. This leads to reduced risk of bone diseases, fractures and osteoporosis.
5. Aids Heart Health
Exposure to sunlight is extremely beneficial for people with heart disease and those who are at a higher risk of heart disease. The warmth of the sun improves circulation and increases vitamin D levels, which in turn improves heart health.
6. Reduces Cancer Risks
An adequate amount of vitamin D in the body can reduce the risk of colon, kidney and breast cancer. Lack of sun exposure contributes to vitamin D deficiency, which in turn increases the risk of many cancers.
7. Eases Mild Depression
Regular sunlight exposure can naturally increase the serotonin levels in your body to help lessen stress and fight off mild depression.
8. Increases Height
Sunlight also helps increase your height. In 2009, a 18–year study by researchers at University of Bristol in UK found that women who are pregnant during the summer tend to have taller, stronger-boned babies.
9. Lowers Risk of Multiple Sclerosis
According to a 2010 study published in the journal Lancet Neurology, adequate vitamin D nutrition in the body can contribute to preventing multiple sclerosis (MS), an autoimmune disease that affects the central nervous system (brain and spinal cord).
10. Improves Metabolism
Sunlight can help you maintain healthy weight by speeding up your metabolism rate. A 2014 study published in the journal Diabetes found that ultraviolet (UV) radiation suppresses obesity and symptoms of metabolic syndrome independently of vitamin D.