What's more, anabolic steroid use causes long term changes to muscle by increasing number of myonuclei (this also happens with natural training, but less effect

What's more, anabolic steroid use causes long term changes to muscle by increasing number of myonuclei (this also happens with natural training, but less effectively). Myonuclei are not lost even after long term muscle atrophy, so it's much easier to regain lost muscle size ("muscle memory"). You keep the benefits long after your cheating has become impossible to prove. AAS increase myonuclei count: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4160183/ http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4160183/ Myonuclei retained during muscle atrophy (animal study, but "muscle memory" is well established in humans too): http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2930527/ http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2930527/