The book cites statistics by Compubox: He took 8,777 blows in 47 out of 61 professional fights. The headgear boxers use in sparring sessions, the book pointed out, has been found not to have protected them from head concussions. In fact, it increases the number of head blows because of the bigger target it presents. There are of course notable boxers who seemed impervious to brain damage, among them George Foreman and Floyd Mayweather Jr. When they get older the cranium is thinner, and when you get hit it affects - that would be the worst thing in the world if Manny Pacquiao suffered brain damage at this point."

Source: Manila Times June 13, 2021 15:33 UTC