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The ultraviolet radiation in sunlight , though a principal source of vitamin D3 compared to diet, is mutagenic . [ 1 ] Supplementing diet with vitamin D3 supplies vitamin D without this mutagenic effect, [ 2 ] but bypasses natural mechanisms that would prevent overdoses of vitamin D generated internally from sunlight.
Risks and benefits of sun exposure
Using your own body for resistance is a very helpful way to build strength, endurance and flexibility. Learn how to do body weight Pilates from a professional instructor in this free fitness video series.
Body Weight Pilates: Video Series
Health effects of coffee
The health effects of coffee have been studied to determine how coffee drinking affects humans. Coffee contains several compounds which are known to affect human body chemistry. The coffee bean itself contains chemicals which are mild psychotropics for humans as a defense mechanism of the Coffee plant.
Water is essential for human health; over 60% of the human body consists of water, and the effects of dehydration can be life threatening.
How to Drink More Water Every Day: 9 steps
18 Beautiful Infographics About the Human Brain
The human brain is a complex and fascinating organ, and we have made great strides in unlocking some of its mysteries. But although we have come a long way in understanding its functions, there is still a lot to be learned.
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The Finnish Sauna
The sauna is a small room or hut heated to around 80 degrees Celsius. It is used for bathing as well as for mental and physical relaxation.
A sunburn is a form of radiation burn that affects living tissue, such as skin , that results from an overexposure to ultraviolet (UV) radiation, commonly from the sun . Usually, normal symptoms in humans and other animals consist of red or reddish skin that is hot to the touch, general fatigue, and mild dizziness. An excess of UV radiation can be life-threatening in extreme cases.
Sunburn
Health and Wellness
Is it just me, or is the world totally in love with everything Jennifer Lawrence does lately? She stars in Hunger Games , it blows up.
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Cathy Wong, ND, CNS, a licensed naturopathic doctor and an American College of Nutrition-certified nutrition specialist, is a well-known authority on natural health and nutrition. More Jonathan Cluett, MD, is a board certified orthopedic surgeon in Massachusetts.
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