Wrestling is extremely dangerous as is evidenced by 2 facts.
1, At any one time, 50% of the worlds premier wrestlers are 'on the shelf', i.e. The Injured List.
2, The vast majority of wrestlers are dead in their mid-thirties. This is from a combination of steroid abuse, substance abuse but also an irreversible addiction to pain killers to get them through the next show.
I trained for 6 weeks to be a Wrestler back in the late 1980's, it was the most pain-filled and physically punishing period of my life.