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Today's Top Medical Stories for Tuesday, October 22, 2013

Even with worldwide efforts to control auto emissions, traffic pollution may be a serious threat to our health.
Even with worldwide efforts to control auto emissions, traffic pollution may be a serious threat to our health.

A new study finds that air pollution from traffic is still a substantial public health concern. Researchers in Canada say there's growing evidence of a link between exposures to traffic emissions and the development of asthma.

The report says Canada has generally good air quality, but even there about 21,000 people die prematurely each year from air pollution.

Researchers at Columbia University have found a way to generate new hair growth.

That's an advance from previous transplant methods that simply redistributed hair from one part of the scalp to another.

The technique could be used to induce growth from donor hair follicles or to rejuvenate existing follicles. It could be a big advance for women with hair loss, or men in the early stages of balding.

Teenagers who exercise appear to do better in school.

Research in the British Journal of Sports Medicine finds moderate to vigorous exercise improves teen’s academic performance. Working out seems to help girls in particular do better in science.

The more intensive the exercise, the greater the impact on test results, the journal reports.

 
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