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Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
Did you know?
No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.
Did you know?
Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.
Did you know?
The immune system needs 9.5 hours of sleep in total darkness to recharge completely.