The reason certain types of trees dominate a region is because of a natural process called
Ask unlimited questions for free
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.
You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.
The longest a person has survived after a heart transplant is 24 years.
There are 60,000 miles of blood vessels in every adult human.
For a complete list of videos, visit our video library