Stretching before you do an exercise

There is a great debate as to weather or not you should stretch before you start your workout. Well let me set the record straight. Yes you should stretch before you start working out because it will loosen up the muscles that you are training and will dramatically lower your chances of getting an injury. But don't over do it on the stretching because the muscles are still cold which means you may have to do each stretch 2 or 3 times with a 1 minute rest in-between in order to make sure they are ready. I know that's a bit much but better safe than sorry!