It probably won't shock you to hear that the rise of e-scooters and their matching services has led to more injuries, but researchers now have some more tangible proof. A UCSF study indicates that electric scooter-related injuries in the US jumped 222 percent between 2014 and 2018, with over 39,000 people hurting themselves. There were 'only' about 3,300 hospital admissions, but that's an increase of a staggering 365 percent. Most first-time injuries came to the 18-to-34 crowd. And yes, the lack of helmets was a problem -- almost a third of injuries involved some kind of head trauma.