How many cells make up your body? It’s actually not all that easy to answer. But recently, scientists have made a pretty good effort. And their final count is around 37.2 trillion. Taken together, you are a picture of these cells. Your actions—going to the gym, sleeping eight hours, and mitigating stress—contribute to keeping your cells healthy and, as a result, your body healthy too. “Cells are literally the building blocks of the complex human beings that we are,” says Renée Deehan, the senior... Read this story