|
|
Did you know?
About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.
Did you know?
Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.
Did you know?
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Did you know?
There are 60,000 miles of blood vessels in every adult human.
Did you know?
Asthma cases in Americans are about 75% higher today than they were in 1980.