Archive: 7/02/2007

Prehistoric origins of stomach ulcers uncovered

The bacterium that causes most kinds of stomach ulcers has been present in the human digestive tract ever since Homo sapiens ventured out of Africa some 60,000 years ago, a study says.

dateFeb 07, 2007 in
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Scientists learn the origin of rogue B cells

Doctors have long wondered why, in some people, the immune system turns against parts of the body it is designed to protect, leading to autoimmune disease. Now, researchers at the National Institutes of Health's (NIH) National ...

dateFeb 07, 2007 in Medical research
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Male sweat boosts women's hormone levels

Just a few whiffs of a chemical found in male sweat is enough to raise levels of the stress hormone cortisol in heterosexual women, according to a new study by University of California, Berkeley, scientists.

dateFeb 07, 2007 in Medical research
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