Ask unlimited questions for free
Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
There are approximately 3 million unintended pregnancies in the United States each year.
For a complete list of videos, visit our video library