Therapy dogs help people who are ill or sad feel better. Learn more about these amazing animals, including how they are chosen, the training they go through, and the work they do.

Many manufacturers of herbal supplements claim their products can improve brain function. However, the U.S. government does not require proof of these claims. Now, writing in plain English, two leading pharmacologists bring together all the scientific information you need to decide for yourself. Using clear examples, the authors explain how drugs and natural products can affect the body, how to determine whether any ingested substance is likely to...