Many people start strength training because they want to build muscle. That’s a great goal – building muscle can help you look and feel great. It improves your metabolism, self-esteem, and overall ...

Plus, exactly how to train to sculpt your muscles.

Repeated exercise, or wasting, can change the way key genes work.

Strong calf muscles propel you forward when walking and running, generate the explosive power needed for jumping, help maintain your balance and stability and protect your feet, ankles and knees from ...

Some workouts leave you buzzing, muscles pumping, and energy on high. Others leave you wondering if you made any progress at all. The difference often comes down to more than just the weight on the ...

Not taking enough rest days can mess with results, FYI.

Creatine is a natural source of energy that helps your skeletal muscles flex (contract). It helps create a steady supply of energy in your muscles so they can keep working, especially while you’re ...

You’ve been hitting the gym consistently, following your workout plan to the letter, and pushing yourself through every rep. In the beginning, the results were exciting—visible changes in the mirror, ...

These genetic differences affect everything from how your muscles work to how your cells make energy. You might have inherited what scientists call the “thrifty gene” that makes your body really good ...