Why are 8 week training camps standard? When did 8 week camps become the standard?

[daggum]

broner's standard camp is 0 weeks, 0 days, 0 hours, 0 minutes, 0 seconds, eating ice cream

[ruedboy]

8 week training camps became standard when fighters realized it took 8 weeks for all PEDs to leave the body. Of course you had the occasional "slow excreter", hence the 10 or 12 week camp. lol
Vada testing is a game changer, so you'll see more guy like Nemo Herredia being hired (drug pushers, who are knowledgeable enough to beat any drug test

[PRINCEKOOL]

12 weeks is what i think most professional's should be doing.