We’ve told you how to have an orgasm in just about any situation. We’ve shared with you four things you didn’t know about orgasms. We’ve even given you step-by-step instructions on how you can have one while going down on a guy –seriously. But never before have we laid out the science of an orgasm. But the folks at the Medical Insurance blog did just that. (A healthy sex life equals a healthy lifestyle … or something like that?) Pay close attention to the infographic below, folks. You never know when “How many gallons of semen does a man ejaculate in his lifetime?” is going to come up in a trivia game. And just think how impressed your teammates will be when you get that right.