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Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Did you know?
If you could remove all of your skin, it would weigh up to 5 pounds.
Did you know?
Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
Did you know?
Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.
Did you know?
The horizontal fraction bar was introduced by the Arabs.