1. Do More Cardio Cardio, also called aerobic exercise, is any form of exercise that increases your heart rate. Regularly incorporating cardio into your routine can help you burn extra fat and speed your way to a set of six-pack abs. Studies show that cardio is especially effective when it comes to reducing belly fat, which can help make your abdominal muscles more visible. One small study showed that doing cardio exercise three to four times per week significantly decreased belly fat in 17 men (1Trusted Source). Another review of 16 studies found that the more cardio exercise people did, the greater amount of belly fat they lost (2Trusted Source). Try to get in at least 20–40 minutes of moderate to vigorous activity per day, or between 150–300 minutes per week (3Trusted Source). Activities like running, walking, biking, swimming or engaging in your favorite sports are just a few easy ways to fit cardio into your day. 2. Exercise Your Abdominal M...