Please choose the correct ending to complete the given sentence: Relationships: [header] How to heal a broken heart [title] Get moving with a little exercise. [step] 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.

Ending1: [substeps] Your heart rate and blood pressure elevates when you exercise. Exercise is a mood booster, which in turn helps you recover. Ending2: [substeps] If you typically exercise too, try buffing your skin. This removes dead skin cells, making your heart beat faster. Ending3: The more you are active, the better the mood you have. [substeps] You may be surprised that once you begin taking steps you can get up and move, maintaining your fitness and helping you manage your emotions. Ending4: You'll also have more energy and feel better about yourself in general. [substeps] Take some group fitness classes or hit the gym with a buddy.

Answer format: ending1/ending2/ending3/ending4