Weird, but true: your partner’s sweat can boost your arousal. Catch a whiff of your partner during or after a workout and your levels of the stress hormone cortisol will increase. That said, hitting the showers after the gym is still recommended.
Working out together has other in-the-bedroom payoffs: studies have shown that people who exercise consistently have better sex lives.
An exercise routine can help you sleep better at night, too. And getting enough sleep is what many experts consider the ultimate aphrodisiac.