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Did you know?
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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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.
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The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
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Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

