Years of chronic exposure of human skin to sunlight strongly disrupts its body-clock rhythm, according to a pioneering study ...

Add Yahoo as a preferred source to see more of our stories on Google. The sun’s rays often feel good on your skin, but can cause serious damage. Maksim Chernyshev/EyeEm via Getty Images Human beings ...

Add Yahoo as a preferred source to see more of our stories on Google. Sun damage is often to blame for premature signs of aging, which include hyperpigmentation or uneven skin tone. (Getty Images) ...

You know the sun can damage your skin, but what about your eyes? Ophthalmologist Jeff Pettey, MD, breaks down the risks of sun exposure to your vision, from painful short-term conditions to long-term ...

For years, medical advice on sun exposure has remained largely consistent: limit direct sunlight, apply sunscreen liberally, and wear protective clothing to minimize the risk of skin cancer. But as ...

A little Vitamin D a.k.a. Sunshine Vitamin is good for you! But, like everything else in this world, too much of anything can be bad for you. Sunlight can feel like an instant mood booster, but over ...

Heat exposure and dehydration can cause headaches and fatigue. Learn why summer headaches happen and how to prevent them.