Jet lag: It's all about chemical reactions in cells

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This graphic of the ribbon structure of the vivid protein with a rising sun signifies the circadian clock (24-hour cycle). Credit: Cornell University
This graphic of the ribbon structure of the vivid protein with a rising sun signifies the circadian clock (24-hour cycle). Credit: Cornell University

Circadian clocks regulate the timing of biological functions in almost all higher organisms. Anyone who has flown through several time zones knows the jet lag that can result when this timing is disrupted.


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All News summaries for May 21, 2007

Grown-up P.E. class has adults reliving childhood

8 hours ago | User rating: not rated yet
(AP) -- When "spastic ball" starts, it's better to duck first and ask questions later. This is Old School P.E., a two-hour exercise program strictly for adults, built around grown-up versions of gym class ...

A hot (pepper) lead in hunt for salmonella source

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(AP) -- It was a hot lead for detectives on a cold case. People suddenly were getting salmonella at a Minnesota restaurant more than 1,000 miles from the center of the nation's outbreak.

ADHD increasingly common in older kids, CDC says

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(AP) -- More older children are being diagnosed with attention deficit hyperactivity disorder while the rate is holding steady for children under 12, according to a government report released Wednesday.

Gates, Bloomberg pool riches to fight smoking

8 hours ago | User rating: not rated yet
(AP) -- Microsoft founder Bill Gates and New York Mayor Michael Bloomberg are pooling their piles of money to pour $375 million into a global effort to cut smoking.

Scientists suspect omega-3 fatty acids could slow acute wound healing

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A recent study shows that popular fish oil supplements have an effect on the healing process of small, acute wounds in human skin. But whether that effect is detrimental, as researchers initially suspected, remains a mystery.
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