Is it true that cardio exercises can be unhealthy?

[Mr Rayon]

For example, due to the increased uptake of free radicals throughout the body?

[Strange]

Who says it is unhealthy?

 

(And why is this in "chemistry"?)

[hypervalent_iodine]

!

Moderator Note

You've been told at least 100 times to post things in the correct forum. This has nothing to do with chemistry. I'm closing this. You may reopen it in the correct place.