Ask unlimited questions for free
This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.
Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.
Asthma cases in Americans are about 75% higher today than they were in 1980.
Illicit drug use costs the United States approximately $181 billion every year.
For a complete list of videos, visit our video library