The biggest problem with Crossfit is that it promotes excessive amount of exercises under time pressure, which really is a dangerous combination. People die in

The biggest problem with Crossfit is that it promotes excessive amount of exercises under time pressure, which really is a dangerous combination. People die in competetive sports all the time. Its very rare but still, there are people dieing doing marathons, thriathlons, crossfit, biking and even less taxing endurance sports like football(soccer). Its rarer than rhabdo but excessive stress on your cardiovascular system can kill you (cardiac arrest, heart attack etc) especially if your heart isnt 100% healthy (and most young people have never made a check on their heart). No reason to panic though, its very very rare, but it happens and thus it should be noted that excessive excersise (in whatever shape or form) just isnt risk free.