You're Skipping the Weight Room
Your evening run or pickup basketball game works wonders for your heart. But if you're not incorporating strength training, you're not effectively fighting gut fat. Research bears this out. A 2014 Harvard University study found that men who clocked 20 minutes of daily weight training along with a cardio workout gained less belly flab compared to those who only did cardio or skipped the gym altogether. Muscle burns more calories than fat, says Aranzamendez. "So the more muscle mass you develop, the higher your metabolism will be, even when you're stuck behind a desk at work.