How do broken bones heal? Why am I made of stardust? And how can sunscreen save my life? The answers to all those questions—and more—are in science . . . and in this book. It's no surprise that science and health are closely linked, but inside, you'll find some links you might not have known. Health science is not just for labs—it's for you every day. And it's not just health—science is all around us, every hour of every day. Discover more ways that science is a part of our lives in SCIENCE 24–7!