Q

How much muscle can one naturally gain in a lifetime?

From 5 years of verified research · Vassili Sandqvist
A

The potential for natural muscle gain is highly individual and depends on genetic factors. While some athletes can achieve impressive physiques without performance-enhancing drugs, the average person may find their gains limited by their genetic predisposition.

This is one answer. The complete system — the psychology, the biology, and the method — is in the book.

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