I guarantee you it’s steroids. MASSIVE steroids.
In the 1980s I worked out 6 days a week on a regular basis. Even at home a bit each day if I didn’t go to the gym.
It was always easy to spot the steroid guys. They grew massively.
Just before then I met the first “Christian” (quotes on purpose) I tried to date. She was into guys like that.
Yes it was an extraordinarily-bad experience meeting her.
1980s single women were worse than today’s.