The Hearty Soul on MSN

Scientists Discover Key Cells That Prevent Your Immune System from Attacking Itself

Every day, your immune system performs a delicate balancing act, attacking harmful invaders while protecting your own tissues ...

Science Says Optimistic People Live Up to 12 Years Longer. Here’s How You Can Be More Positive, Hopeful, and Confident

Research shows optimism is a major contributor to longevity. Fortunately, up to 75 percent of your level of optimism is under ...