In college sports, nearly one out of three athlete injuries is a result of overuse. It happens most often in low contact sports that involve long training sessions and repetitive motions. Overuse injuries were found to be most common in rowing, softball, volleyball, cross-country, and track and field. Injuries from overuse tend to get worse gradually and therefore may take longer to diagnose and treat.
A new study throws more light on the power of peer pressure. Researchers at the Max Planck Institutes watched the social behaviors of a group of 2 year olds. They found that toddlers are more likely to copy an action if they see three of their peers do it first. That does not hold true if they see just one peer do it three times. The study's conclusion is that even at the age of 2, the majority influences people.
(Dick Brennan, CBS News)