Please choose the correct ending to complete the given sentence: Youth: [header] How to forget a cheating boyfriend [title] Exercise to regulate your mood. [step] Regular exercise can help lift your mood, and can help you keep busy. This will give you less time to ruminate over what happened with your ex-boyfriend.

Ending1: [substeps] A simple thirty minute walk may work to help curb sadness about your situation. Try to get at least 150 minutes of exercise every day, whether it be running, lifting weights, or playing a sport. Ending2: [substeps] You can do your regular exercise before bed or right before bed. You should do it as soon as you wake up so you have enough time to get your body moving on your own. Ending3: Try picking up a new exercise routine to help boost your mood and forget your ex. [substeps] Choose a type of routine you like, as you'll be more likely to stick to it. Ending4: Exercise releases adrenaline into you, and can make you take an ultimate plunge. [substeps] Try going for a run, taking a jog, or doing yoga.

Answer format: ending1/ending2/ending3/ending4