Have you ever fallen and scraped your elbow or knee so badly that it bled? If so, you or an adult probably cleaned the wound, stopped the bleeding, and then placed a bandage over it. Try this activity ...

When a bone-break occurs, the body floods the injury site with a healing biochemical known as adenosine. A new bandage is designed to absorb that substance, keeping it around so it can do more work.

Every scrape, cut or boo-boo can not only hurt but can feel scary to your little ones. As much as you want to go back in time and save them from tripping on the playground, you can only soothe their ...