why is it that the lighter your weight class is, the more dangerous it is?

i read a study about this it's because there is more punches thrown in the smaller division compared to the bigger divisions. a straweight could throw more punches than a heavyweight. punches in the lower division don't look devastating. what does the damage is the accumulative punches for 12 rounds whereas in the heavyweight, a fight could end in the first round, minimizing accumulatibve punches for all 12 rounds. Better get KTFO than take a beating for all 12 rounds in other words.

this is sad. not true at all, Mike Tyson was more dangerous than anyone else.

I have no idea what I am meant to do with this thread. So I will just leave this here: http://www.solarnavigator.net/films_movies_actors/actors_films_images/cameron_diaz_bathing_suit.jpg