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It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

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Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

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People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

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The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.

(A) Dornier Compact Delta® lithotripsy system. Acoustic shock waves generated by the shock-wave-gene (A) Dornier Compact Delta® lithotripsy system. Acoustic shock waves generated by the shock-wave-gene
The secular trend in growth as measured in Swedish (a) girls and (b) boys between 1883 and 1968. The secular trend in growth as measured in Swedish (a) girls and (b) boys between 1883 and 1968.
Particles measured, 1970 - 2008 and Trend in Organic Compound 1990 - 2007 Particles measured, 1970 - 2008 and Trend in Organic Compound 1990 - 2007
Industry is responsible for 21% of global greenhouse gas emissions Industry is responsible for 21% of global greenhouse gas emissions
How Far Did Your Food Travel? How Far Did Your Food Travel?
A company spends $117 500 today and has positive cash inflows of $34 000 for each of the next 6 ... A company spends $117 500 today and has positive cash inflows of $34 000 for each of the next 6 ...
Video: B cells and antibodies

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