Your heart pumps blood from your head to your toes, provides cells with fresh oxygen, and removes waste products. Located in ...

A less invasive test for Alzheimer’s is a big advance. But it’s not perfect and is not meant to screen healthy people.

Doctors can order genetic tests for people at high risk of breast cancer, and insurance often covers those, Kamal says. For people without a clear genetic risk or who don't know their family health ...