What child (or adult) doesn't like to jump up and down in a bounce house? They are fun, but doctors say they may be more dangerous than once thought.
A study from Nationwide Children's Hospital shows on average about 30 kids a day go to an emergency room with broken bones, sprains, cuts, and even concussions due to playing in bounce houses.
Experts say the trouble usually comes when there are several kids in the bouncer, and they collide.
Dr. Gary Smith, of the Center for Injury Research and Policy, says, "The injury patterns for inflatable bouncers are very similar to those seen for trampolines. And this begs the question - should the recommendations for safe use of trampolines also be applied to inflatable bouncers?"
The injury experts say right now, there aren't many guidelines or regulations on the houses.
And no matter how careful parents try to be, it's often not enough.
Cassie Stapleton was one of those injured. And she was actually with her father Preston when her arm was broken.
"Cassie was sitting in front of me between my legs. We came down the slide. We just kind of rolled to the side a little bit. I went to put my arm out just to kind of brace us, and Cassie did the same thing at the same time. My arm came down on top of her and that was it," says Preston Stapleton.
Dr. Smith says the biggest number of injuries were among younger children, and boys were hurt more often than girls.
Also today, a major doctors' group says teenagers should have access to the so-called "morning after" pill.
The American Academy of Pediatrics says doctors and parents should be talking about it sooner.
And teens should have a prescription for it in case they need it.
Right now, it is only offered over-the-counter for girls 17 and older.
Access to Plan B for teens has been a controversial topic.
Critics say it encourages teens to be more sexually active, however, the Academy of Pediatrics says there is no proof of that.
And for non-runners, you may think people who run marathons or other long races are crazy.
But running coach Tom Holland, who wrote "the Marathon Method," says for most people, the more you run, the more addicted to it you become.
Holland says the average person starts running to lose weight, but there is a point when it becomes easier.
He calls it the "cardio-vascular turning point," but it's also known as the "runner's high."
He says it happens for different people at different times.
Most sports medicine doctors don't think running 26.2 miles is good for the body, however, running shorter distances is a great way lose weight and get your heart healthy.