In 1978, a seemingly straightforward experiment designed to establish the relationship between high blood cholesterol and heart health in rabbits discovered that kindness made the difference between a heart attack and a healthy heart. It's called the Rabbit Effect, and Dr. Kelli Harding has written a book about it; The Rabbit Effect: Live Longer, Happier, and Healthier with the Groundbreaking Science of Kindness.
Photo: Kelli Harding
