Sarah Leupen, University of Maryland, Baltimore County
All mammals who get nutrients from their parent via a placenta before birth are left with a belly button. It’s a visual reminder of this original connection.
Our ancient ancestors didn’t have clothes or houses – but that constant exposure to the sun helped their skin protect itself from the worst sun damage.
Some studies reported skin improvements from collagen supplements. But many of these studies were sponsored, fully or in part, by cosmetic or supplement companies.
Researchers are developing tattoo inks that do more than make pretty colors. Some can sense chemicals, temperature and UV radiation, setting the stage for tattoos that diagnose health problems.
You can prevent your skin becoming dry and inflamed with some simple steps. And if you do develop dermatitis, it’s important to seek early medical help.
Hives are incredibly common and most people find antihistamines help relieve this itchy skin rash. But for some, hives persist, so they have to try other treatments.
When kids get injured their skin heals fast, but usually with nasty-looking scars. Now scientists studying the genes of old mice have figured out how they regenerate skin and block scars.
Dangerous open wounds known as cutaneous ulcers are common in people with diabetes and bedsores. Now scientists have figured out how to reprogram the cells inside these wounds to heal themselves.