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Did you know?
Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
Did you know?
There are more sensory neurons in the tongue than in any other part of the body.
Did you know?
During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.