Health and Medicine

Vaccines are substances that help the body fight off diseases and illnesses. In the past they have helped save millions of lives around the world. Diseases are often caused by bacteria or viruses that attack the human body.  A vaccine is a dead or very weak form of such a virus. When you get a […]

The body is an amazing object; the more you ask of it, the more it can do. If you are inactive most of the time, your body will quickly become tired when it should be active. But if you are active many times each day or week, your body will get used to the hard […]