These 6 factors determine how fast you build muscle. Here's what you can—and can't—control.

Experts break down the science behind muscle growth.
Amazon S3 on MSN

How to build muscle fast even if you feel like you have poor genetics

Superhuman Troy explains how to build muscle effectively and consistently even for individuals who feel they are working against unfavorable genetic limitations.
AOL

Build muscle in one hour a week with 4 tips from a bodybuilder scientist with a PhD in getting gains fast

A bodybuilding researcher said that for most people, less time in the gym can lead to better gains. Save time and build more muscle by choosing the right exercises, equipment, and techniques. Smart, ...
Men's Journal

Trying to Pack on Size? Personal Trainers Say This Unconventional 3/7 Training Method Builds Muscle Shockingly Fast

View post: The Joint-Friendly Exercise a Trainer Wants You to Do to Undo Knee Pain and Reverse the Effects of Sitting All Day You can build muscle a hundred different ways—switching up your reps, ...