What are some unproblematic cardio exercises that you can do short equipment?

Answers:
that thing you do near your feet. I think it's call running
Ya.. you too good for running, jump, dancing?
1. lunges are great to get the heart moving

2. plank- when you are in a push-up position lately stay as you would be when you go up.

3. running- not fun, but great for you

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