Steroids Muscle Building: How Do You Build Muscle: Tip 4 – Steroids vs Natural Training. www.sebastianmaclean.com Ever ask, “How do you build muscle?”. To get bigger, stronger muscle, natural bodybuilders need to train and eat differently from steroid using bodybuilders. Sebastian MacLean explains in his video and text based natural muscle building tips. Get more of these at the link in this description.