You probably know to be extra careful when swinging around a heavy kettlebell, or to make sure the treadmill is completely stopped before hopping on; a broken foot or bloody nose can happen in no time, especially if you're clumsy.
But there are some things that can go wrong, even when you have the best of fitness intentions. Here are some of the most pervasive dangerous workout myths, debunked.
"Being pissed is a great motivator to work out"
It's hard to deny the extra pump of adrenaline you feel when you hit the gym angry; taking out your frustrations on exercise equipment seems like a healthier way of coping than, say, picking a fight at a bar. But even if it helps you log a few extra miles on the treadmill, it could be wreaking havoc on your heart.
A new study shows that emotional triggers before exercise, especially being angry or upset, can lead to a heart attack. Those emotional triggers doubled the risk of having a heart attack within an hour, as did intense physical exertion. The two together tripled the risk, even independent of other factors such as obesity, smoking, or high blood pressure. So maybe it's best to cool off a little bit before heading to the gym.