CrossFit continues to get a lot of negative press these days. It seems like the hype is finally catching up with them.
A number of cases from U of CA Davis Medical School liked CrossFit to carotid artery dissection or CAD. CAD is a breakdown in the structure of the arteries supplying blood to the brain and head. CAD is a huge risk factor for stroke.
Basically, the injured blood vessels can easily create clots that travel to the brain and cut off the supply of blood.
Going back to the tried and true methods – gym work, running, cycling etc., is looking better and better.