Other research has studied teen depression and other mental health concerns, but officials say this may be the most comprehensive national look at stress in teens to date.
"They're differentiating between the things they believe are negatively impacted by stress vs. "It's incredibly important to have the downtime, and it makes sense to have a dramatic shift in the summer.
"We have to do everything and be perfect for colleges and we have a big workload.
Most of the time we talk about how stressed we are."Sturgill says she skips meals because of stress.
Unlike many teens surveyed, she goes to the gym to work out every day.
Only about 37% of teens surveyed exercise or walk to manage stress; 28% play sports.