Tends to decline with age! TENDS!?

No, what's unethical is using a steroid-enhanced physique to make a lot of money from this image and not disclosing the PED use. Lying to millions of kids who think it just takes hard work to look like that.

If you honestly believe that someone can be more muscular at 50 naturally than they were as a pro wrestler at 25-30 (who all juice), then I don't think you're really that educated about how testosterone affects our potential to build and retain muscle.

PS - the tooth fairy isn't real either.