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In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).
The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.
Thyroid conditions may make getting pregnant impossible.
In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.
![The Dall sheep, Ovis dalli, a mountain sheep of far northern North America, was the subject of one o](https://biology-forums.com/gallery/47/medium_33_22_09_11_9_35_55_18001324.jpeg)
![Distribution of glaciers in North America (a) in the late twentieth century, and (b) 18,000 years ag](https://biology-forums.com/gallery/47/medium_33_19_02_12_5_39_50_20561464.jpeg)