Male Breast Cancer kills more often than female breast cancer. Why? Because too many men aren't even aware they can develop it. Therefore, when the tiny lump, or an odd tenderness appears they shrug it off until it's too late.
Here's an excellent video - done with humor and sex appeal - to teach you how:
Check those pecs, boys!!!
And, might I add, that turn-about is fair play: You should pick a day of the month on which you always remind the women in your life to do a breast exam.