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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

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One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

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The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

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Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

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As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Deserts differ across the world. (a) Acacia trees between a gravel plain and sand dunes in the Namib Deserts differ across the world. (a) Acacia trees between a gravel plain and sand dunes in the Namib
Source Regions: Air Masses Source Regions: Air Masses
World Total Energy Consumption by Fuel Type World Total Energy Consumption by Fuel Type
Oil sands reserve in the world Oil sands reserve in the world
Fertility in the Developing World Fertility in the Developing World
GloFish, marketed as the world’s first GM pet, are a controversial product of genetic engineering GloFish, marketed as the world’s first GM pet, are a controversial product of genetic engineering
Video: Pasteur's Experiment

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