Engaging your nervous system could help build strength more than muscle gain

In the body, nerves called motor neurons relay signals from the brain to muscles

Scientists found some exercises engage the motor neurons more than others

Heavy weights engage nerves more than light weights, even with fewer reps

Lifting heavy weights induces nerves to send more signals from brain to muscle

Those trying to become stronger by putting in extra hours at the gym may be getting it all wrong, according to new research.