The body goes through lots of stresses throughout the day, especially during a workout, causing your muscles to get tight and sore, putting pressure on your joints, and limiting your mobility. Foam rolling is a great way to use your own body weight to relieve muscles at home, without spending money on an expensive massage, or waiting to see a physical therapist. While stretching is essential, it only lengthens the tissue; foam rolling targets tight muscles and knots, while also increasing blood flow.