Mike Tyson still works out 2 hrs a day...

[Hulk]

He shouldn't spar at all.

Every boxer takes enough brain damage as it is.
Any young boxer, say 24 years old with 24 fights, already has measurable brain damage.

So do you.

Actually I do have some brain damage.

Lung problem for 9 months in 2008, finally cleared up, but brain damage resulted.

Lungs bring oxygen into the blood, the arteries carry the oxygenated blood to the brain.
Without oxygen, brain cells die. For 9 months, I could barely breath.
When the lungs cleared, i could walk a decent pace again, and even was able to get back to jogging, but my mental processes were noticeably slower... and I forget things now.

Well now I just feel like a jerk.....