News tagged with mechanical signals

How visual attention affects the brain

New work at the University of California, Davis, shows for the first time how visual attention affects activity in specific brain cells. The paper, published June 26 in the journal Nature, shows that attent ...

Jun 26, 2013
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A coordinated response to cardiac stress

Myocardial hypertrophy, a thickening of the heart muscle, is an adaptation that occurs with increased stress on the heart, such as high blood pressure. As the heart muscle expands, it also requires greater blood flow to maintain ...

Mar 01, 2013
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Medical myth: Stress can turn hair grey overnight

The belief that nervous shock can cause you to go grey overnight (medically termed canities subita) is one of those tales which could nearly be true. There are certainly cases in medical literature of ra ...

Feb 27, 2013
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Cancer biology: Keeping bad company

The p53 tumor suppressor protein manages DNA repair mechanisms in response to genetic damage and kills off precancerous cells before they multiply. The loss of p53 due to mutation greatly increases risk of ...

Jan 16, 2013
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