There's no better way to get over a break-up than to invest in yourself. And that's just what Jennie Garth did when she shed 20 lbs. after her split with husband Peter Facinelli. To weather the emotional rollercoaster, the actress not only hit the gym for circuit training, but she also headed outside for running, hiking and horseback riding. "She'd push over a tractor tire, then do push-ups, then jump rope, do deadlifts and run for a bit," trainer Shannon Stewart tells Us Weekly. Ride out a stormy time in your life by ramping up your workouts -- you'll feel better and get stronger (both mentally and physically) in the process.