What's wrong with this picture? May 06, 2016 In May 2012, Trauma Physician Update e-Edition ran a story about a dramatic rise in injuries and deaths from all-terrain vehicle (ATV) accidents. That was especially true among children, who at the time accounted for one-third of ATV-related emergency department visits nationwide. Most were treated for head injuries, many of which could have been prevented by helmet use. Rollovers are the No. 1 reason for ATV accidents. Carrying passengers, which can unbalance the machine and cause it to tip, is a major contributing factor. In 2012, rollovers were the No. 1 reason for ATV accidents; they still are today. A major contributing factor is carrying passengers, which can unbalance the machine and cause it to tip. Back then, one Mayo Clinic trauma surgeon noted, "I can understand that this can be a great family activity if it's well-supervised and takes place at a reasonable pace on planned trails with everyone wearing helmets. But when it deviates from that, it can become dangerous." Receive Mayo Clinic news in your inbox. Sign up Related ContentArticleGun safety awareness for you and your communityArticleThe hows and whys of active shooter exercisesArticleThe gun safety conversation: Risks and benefits MAC-20431481 Medical Professionals What's wrong with this picture?