THE BODY IS a complex machine. Your corporeal form houses over 600 muscles, all working together to help you perform your best every day. Fitness pros tend to organize all of these into different ...

What are the different exercise types? Many exercises will work at least two different muscle groups together, while others can isolate specific muscles. Compound exercises work several muscle groups ...

Dr Mike Israetel explains how many exercises per muscle you really need to build size, and why total hard sets matter more ...

Follow these four trainer tips to optimize the process.

This randomized controlled trial shows that structured moderate-to-vigorous exercise, alone or combined with liraglutide, ...

Try this 6-minute workout to restore muscle after 55, designed by Jarrod Nobbe, MA, CSCS, for a stronger morning.