Platelets heal wounds. But they also seem to play a paradoxical role in both promoting and inhibiting the growth of solid tumors.
Small wounds can usually heal by themselves, but larger wounds can be a problem. With a little help from a seaweed we can help the body regenerate new blood vessels.
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.