WHAT'S INSIDE: HUMAN NATURE
- Health Myths
- Human Behavior
- Human Perception
What you don't know can't hurt you, right? Maybe not. Studies show secrets may actually be harmful to both those keeping them -- and those they're keeping them from.
Sucking on a thumb is a normal reflex that soothes children in times of stress; it's essentially a security blanket that's attached to the body. But will this innocent gesture wreck their teeth?