Q: I'm 15 with large 'man boobs'. Will they eventually go away or should I start running like people to me to do to reduce the size of my chest?

A: If you are of normal weight, then most likely you have nothing to worry about -- these 'man boobs' will go away in a year or two as your body matures. However if you are overweight you would do well to start exercising and eating right now. At your age you do not need to actively try to lose weight unless you're very overweight -- if you start eating right and exercising, your body's continuing growth will take care of the extra weight and fat with time.

So, if you are not overweight, don't worry about the man boobs. If you are slightly overweight, start eating better and exercising and let your body take care of both the man boobs and of whatever little extra fat you might have. If you're very overweight, then you may want to actually start losing weight slowly -- read this article to learn how.