Ask Kimberly: What can I do to deal with "man boobs"?

... of days you exercise. Then maybe add some speed to your cardio, or slowly increase the weights you use for weight training. You might also ask your doctor to check for a condition called gynecomastia, which can result from natural hormone changes ...

http://www.philly.com/philly/health/sportsmedicine/20131009_ASK_KIMBERLY.html