How are fighters so muscular?

[Deusmaximus]

Often times they do very strange weight lifting exercizes that is far from science based or effective in bodybuilding theory.
Still they are always ripped and have good muscle mass...

 

[Thinking_CEL]

I mean most take steroids since if one illegally does it, it ends up creating a loop where the others don’t wanna be disadvantaged

They are also very lean for light Weight so it shows more muscle even if they don’t have much

 

[Nectar]

Because they train?
I mean sure some have used PEDs and even admitted using them but occasionally they train batshit insanely because they would be too worried about losing in their upcoming fights against their opponents