As extreme heat sweeps the nation, millions of people are expected to face abnormally hot weather this summer. When the temperatures rise and humidity increases, so does the heat index, which is how hot it feels to the human ...
Jul 15, 2024
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Roughly 20% of Americans are diagnosed with skin cancer at some point in their lives, but it's not inevitable.
Jul 14, 2024
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Varicella zoster virus (VZV) can cause chickenpox, as well as shingles and severe complications. When one comes into contact with VZV for the first time, the virus enters the body through the airways, reaching the mucous ...
Jul 12, 2024
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The U.S. Food and Drug Administration has approved Arcutis Biotherapeutics' Zoryve (roflumilast) cream, 0.15%, for the treatment of mild-to-moderate atopic dermatitis in adult and pediatric patients (ages 6 years and older).
Jul 12, 2024
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From Kylie Jenner and Rihanna to Ariana Grande and Cardi B, celebrities are sporting long, acrylics—often heavily embellished with nail art—as an expression of their style. Nail fashion is now a booming industry with ...
Jul 11, 2024
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It's understandable—you were having too much fun splashing around in the pool to even consider stopping the fun to get out and go about the incredibly un-fun task of reapplying sunscreen. Next thing you know, you're reaching ...
Jul 10, 2024
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Urban-rural disparities in skin cancer prevalence continue to persist, according to a study published in the June issue of the Journal of Drugs in Dermatology.
Jul 9, 2024
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American men are blowing their best chance to head off cancer or spot it early, when it's easiest to treat, a new survey warns.
Jul 5, 2024
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Did you know sunscreen has a shelf life and can expire? Or that too much heat or cold can ruin a new bottle?
Jul 5, 2024
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Attention sunscreen skeptics: The sun's UV rays are coming for you, and you're just making their job easier.
Jul 3, 2024
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The skin is the outer covering of the body. In humans, it is the largest organ of the integumentary system made up of multiple layers of mesodermal tissues, and guards the underlying muscles, bones, ligaments and internal organs. Skin of a different nature exists in amphibians, reptiles, birds. Human skin is not unlike that of most other mammals except that it is not protected by a pelt and appears hairless though in fact nearly all human skin is covered with hair follicles. The adjective cutaneous literally means "of the skin" (from Latin cutis, skin).
Because it interfaces with the environment, skin plays a key role in protecting (the body) against pathogens and excessive water loss. Its other functions are insulation, temperature regulation, sensation, synthesis of vitamin D, and the protection of vitamin B folates. Severely damaged skin will try to heal by forming scar tissue. This is often discolored and depigmented.
In humans, skin pigmentation varies among populations, and skin type can range from dry to oily. Such skin variety provides a rich and diverse habit for bacteria which number roughly a 1000 species from 19 phyla.
This text uses material from Wikipedia, licensed under CC BY-SA
