Take it outside! Research shows people who exercise outdoors are far more likely to still be at it after 3 months, compared to those who exercise exclusively indoors. The reason? Because you’re not as likely to get bored with the great outdoors, compared to the same ole treadmill. Plus, getting out in nature, and seeing trees, grass, and even dirt is a proven happiness-booster, which makes you much more likely to stick with your fitness program.