Sunshine is beneficial to the human body: Firstly, the UV radiation and the part of the visible light spectrum contain helpful rays. In moderation, the sun can be good; gone too far; it could harm. The sun gives so much to the human body:
1. Vitamin D Production
It works like this: Sunlight stimulates the UVB rays from the sun on the skin to produce vitamin D. This vitamin is necessary for:
Bone health (aids in the absorption of calcium and phosphorus).
Immune system support.
Normal muscle function and overall health.
Importance: Lack of sunlight can lead to vitamin deficiency with diseases, including osteoporosis and a weakened immune system.
2. Improvement of Mood
It works like this: Sunlight triggers increases in serotonin, a mood elevating hormone that leads to increased focus.
Importance: Can help alleviate symptoms of depression, especially SAD or Seasonal Affective Disorder.
3. Circadian Rhythm Regulation
It works like this: Exposure to sunlight helps keep the internal body clock in check, and this, in turn, will promote healthy sleep rhythms by suppressing melatonin (the sleep hormone) during the day.
Importance: A proper circadian rhythm assures the general well-being of a person, with levels of energy and alertness.
4. Improvement of Skin Ailments (in moderation)
It works like this: Controlled exposure to the sun can improve some skin ailments such as psoriasis, eczema, and acne for some individuals.
Importance: Frequently used in phototherapy for which professional medical supervision is necessary.
5. Production of Nitric Acid
Mechanism of Action: UV rays can induce the release of nitrous oxide from the skin, a substance which can help to lower blood pressure.
Importance: This may reduce cardiovascular risk.
Potential Risks Associated with Excessive Sun Exposure
Sunburn: Skin cells die off because of excessive amounts of UV rays.
Skin-aging: Increases in accelerated wrinkles and damage done to the skin cells from too much sun exposure.
Skin cancer: the longer and unprotected exposure increases the risk.
Eye injuries: UV rays can contribute to cataracts and several other eye conditions.
Final Message: Sunlight does help. It is good for a person in moderation: about 10 to 30 minutes of sun exposure two to three times a week.
Comments
Post a Comment