If everyone understood the positive impacts of exercise on our sex lives, then surely more of us would be lacing up our sneakers and carving out time to move our bodies each day. Exercise has a host of positive physical and mental health effects, many of which improve our confidence, performance, and libido. And thankfully, you don’t need to hit the gym multiple hours per day or wake up for a 6 a.m. pre-work run to reap the benefits. There are m…