Ask unlimited questions for free
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.
Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.
Malaria was not eliminated in the United States until 1951. The term eliminated means that no new cases arise in a country for 3 years.
There are 20 feet of blood vessels in each square inch of human skin.
For a complete list of videos, visit our video library