There's a lot of news about cholesterol these days, and with good reason. High cholesterol contributes to heart disease, which kills more Americans than all cancers combined. A regular exercise routine and good eating habits — along with medication if your doctor recommends it — can keep cholesterol levels under control and lower your risk of heart disease.

Neuroscience focuses on your brain and nervous system, which make up your body’s complex and marvelous command center.

Although genetics determines how long we will live, it's the lifestyle we choose that will determine how healthy we are as we age.