Now… I’m not saying anabolic steroids were not used… but…

Christian Bale lost 60lbs, down to a weight of 120lbs, to perform as the quite gaunt main character of The Machinist.

The next movie he did was Batman Begins.

He… gained 100lbs, of muscle… in … somewhere between 6 months and a year.

Steroids or not, he had an insane workout routine, and gaining 100lbs of muscle in under a year is… also fucking insane, as in, it probably should have killed him.