Question 1
Question 2
Ask unlimited questions for free
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
The longest a person has survived after a heart transplant is 24 years.
In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.
Illicit drug use costs the United States approximately $181 billion every year.
For a complete list of videos, visit our video library