It is fun, sweaty and requires you to think on your feet. You need strategy to defeat an opponent before sparring. You need to think immediately on how to counter an attack or how to attack. You need to use leverage against a bigger opponent. You need to seize that small advantage you have to convert it to something bigger.

All of these train your mindset for entrepreneurship. Planning a strategy, changing you game plan, using leverage against bigger opponents. Having your body hurts trains you to take a beating. Losing a fight gives you feedback on how to improve if you are open to learning

There's no way you can be serious.

I also don't doubt for a moment that exercise is healthy for the body, just like spinach, which I also hate.

But hey if you got some idea about how to make it more fun, I am open for suggestions - I have no desire to die early.

I'm more into weight lifting, myself. It's not at all tedious.