Write the next sentence in the following story.

How to heal a broken heart
Get moving with a little exercise.
Go to the gym, go for a jog in the park, or just get outside for a brisk walk. Physical activity increases the amount of serotonin in the brain, which acts like a natural antidepressant and improves your mood.
You'll also have more energy and feel better about yourself in general. Take some group fitness classes or hit the gym with a buddy.