In today’s world of synthol and esciline, many bodybuilding fans have sat and had a chuckle at the sight of a professional bodybuilder with ridiculously oversized upper arms, and extremely skinny forearms. It’s a classic and painfully obvious sign that the bodybuilder has used site injections, since it’s virtually impossible to gain size on the biceps without gaining size on the forearms. After all, the forearms grip the weight used in curls and do handle the same weight that the biceps are required to curl. Most professional bodybuilders are blessed with decent forearm development, or it arrived pretty quickly when they trained to achieve pro caliber biceps.

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