Bike Share, Check. Helmet? Not Always | TIME.com <==click for full article
When I first gave New York City‘s Citi Bike a ride, I was surprised that helmets weren’t part of the program (free helmets were offered on opening weekend), considering how dangerous riding bare-headed can be. In most cities, helmets are required for children, while people ages 16 and up can legally ride without one. But the latest data from the Centers for Disease Control and Prevention shows how vulnerable even adults are to serious bicycle injuries; in 2010, 800 bicyclists were killed and about 515,000 suffered injuries that required emergency department care. Bikers who die of head injuries are three times as likely to not be wearing a helmet.