Oncology & Cancer

Video: Men need to take melanoma seriously

Melanoma is the most serious type of skin cancer. It develops in the cells that produce the pigment in your skin that gives it color. It most often occurs on skin that is exposed to the sun, but can develop in your eyes and, ...

Neuroscience

Sunshine may shield children, young adults from MS

Living in sunny locations and spending time outdoors may raise the risk for skin cancer, but a new study led by UC San Francisco and the Australian National University shows that in children and young adults, sun exposure ...

Health

Sun's rays can reduce premature birth risk

Women who receive more sunlight in their first trimester lessen the chances of developing problems with their placenta associated with preterm birth and baby loss, researchers say.

Gerontology & Geriatrics

Q&A: Aging and changing

DEAR MAYO CLINIC: I am 56 and have noticed a few things are changing as I get older. I know as I age there will be more changes in my body and mind, but can you provide insights on what are some common things that I can expect?

Oncology & Cancer

Many Americans wrong about Sun's skin cancer dangers: Poll

(HealthDay)—You might think everybody knows how to protect themselves from the sun's harmful rays, but a new survey reveals that one-third of Americans lack a basic understanding of sun safety and skin cancer.

Health

The skinny on wrinkle-free skin

Wrinkles may be a natural part of getting older, but you can slow your skin's aging with changes to your lifestyle and environment, a skin expert says.

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Sunburn

A sunburn is a burn to living tissue such as skin produced by overexposure to ultraviolet (UV) radiation, commonly from the sun's rays. Usual mild symptoms in humans and animals are 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. Exposure of the skin to lesser amounts of UV radiation will often produce a suntan.

Excessive UV-radiation is the leading cause of primarily non malignant skin tumors. Sunscreen is widely agreed to prevent sunburn, although a minority of scientists argue that it may not effectively protect against malignant melanoma, which is either caused by a different part of the ultraviolet spectrum or, according to others, not caused by sun exposure at all. Clothing, including hats, is considered the preferred skin protection method. Moderate sun tanning without burning can also prevent subsequent sunburn, as it increases the amount of melanin, a skin photoprotectant pigment that is the skin's natural defense against overexposure. Importantly, sunburn and the increase in melanin production are both triggered by direct DNA damage. When the skin cells' DNA is damaged by UV radiation, type I cell-death is triggered and the skin is replaced. Malignant melanoma may occur as a result of indirect DNA damage if the damage is not properly repaired. Proper repair occurs in the majority of DNA damage, and as a result not every exposure to UV results in cancer. The only cure for sunburn is slow healing, although some skin creams can help with the symptoms.

This text uses material from Wikipedia, licensed under CC BY-SA