#2 – Hill Sprints
Hill sprints work in two ways to make sure that you burn as much fat as humanly possible during your workouts. Intervals are now known as a great way to ramp your metabolism quickly, without sacrificing muscle tissue like traditional cardio does. Hill sprints will give you lower body strength, a leaner body, and even help to optimize your hormones. A study found that interval cycling improved the benefits of exercise by almost 50% while also cutting time in half!