Health

To be less sedentary, you may need a more active friend

A newly developed mathematical model incorporates the influence of social interactions on community exercise trends, suggesting that interacting with moderately active people could influence sedentary people to become more ...

Health

Bisphenol A exposure cost $3 billion in 2008

(HealthDay)—About $3 billion in health costs in 2008 could be attributed to bisphenol A (BPA) exposure, and removing BPA from all food uses could save nearly $2 billion annually, according to a study published online Jan. ...

Psychology & Psychiatry

Sharing voluntarily makes young kids happy

If humans are primarily motivated by self-interest, as traditional economic theory claims, why do we sometimes perform acts of generosity that don't yield us any material benefits? Indeed, such altruistic behavior may sometimes ...

Cardiology

After a heart attack, physical activity makes you feel better

Heart attack patients who take part in a lifestyle improvement programme feel better—especially when they do additional physical activity. That's the finding of a large study presented today on ACVC Essentials 4 You, a ...

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