I've always wondered the answer to this question. Fighters of yesteryear manage to have hundreds and hundreds of fights,sometimes fighting monthly! There were not as many rules or regulations in place yet today,if a fighter fights 3 times a year,he's active and a 60 fight career is a really long career by todays standards.Why is this?What changed?

Sorry if it's a stupid question,I guess I just miss seeing fighters fight more often and for longer periods.Let me know your thought and theories.