Getting yourself to the gym doesn't just make you more attractive to potential mates—it can help you perform better, too. At least that's the point personal trainer Harry Jameson is trying to make in this month's British Esquire. "There's a load of exercises, foods and tricks to boost your libido, improve your stamina and shift your sex life up a gear." He then provides some exercises designed to encourage your body to release more sex hormones and to strengthen those muscles involved in sexual intercourse.