"Teenagers tend to be drawn to danger," Casey, who direct's Cornell's Sackler Institute for Developmental Psychobiology, told Popular Science. "It's as if they can't helps themselves." That's not to say they can't be trusted to make any decisions whatsoever, just that those abilities "might be compromised in emotional setting." Though teenagers might be at the healthiest and quickest stage of their life, she says, "in the heat of the moment, they falter. We don't tend to do that as much as adults."