Unusual ways to do cardio

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1. Running away from the police

2. HIIT sex

3. Running of the bulls

https://en.wikipedia.org/wiki/Running_of_the_bulls

4. Chess

Men's Health article. I haven't read it; could be nonsense.

5. Intensive axe throwing

6. Laser tag

7. Tree climbing

8. Aerobic dancing to Beethoven

9. Lightsaber combat

It's a thing.

10. Chase tag

Surprisingly entertaining to watch.