Is There Such Thing as a 'Hard Gainer'?

Get-Fit Guy - En podkast av QuickAndDirtyTips.com - Tirsdager

Prøv Podimo gratis i hele 60! dager!

I Podimo finner du eksklusive podkaster og bestselgende lydbøker tilpasset dine ører

Is there really such a thing as a ‘hard gainer’ or do we all have muscle building potential?