athletes

A noninvasive saliva test accurately identified concussions in a study of hundreds of rugby players.

Healthy people put through high-intensity interval training, or HIIT, displayed insulin resistance and mitochondrial dysfunction after working out excessively.

Comparing the brain scans of high-impact rugby players with those of athletes in noncontact sports, such as rowing and swimming, revealed tiny, yet significant, differences in the brain’s white matter.

Images of the players’ hearts showed signs of inflammation consistent with myocarditis, a rare but potentially fatal condition.

Anti-doping organizations are constantly developing new tests to catch athletes trying to boost their performance in increasingly sophisticated ways.

A comparison of thousands of former athletes in the two sports finds that NFL players were more likely than MLB players to die from cardiovascular and neurodegenerative diseases, in particular.

Researchers are beginning to uncover a link between activity level and the microbial makeup of one’s gut.

The most high-tech laboratory in the history of the Olympic Games is prepared to begin athlete testing in London.

After a concussion forces him to retire, a former pro-wrestler starts an institute to study the neurological effects of repeated brain injuries.

New doping tests that could be used at the 2012 London Olympics should ward off cheaters better than ever before.