Aries are gutsy, ambitious, and competitive, thanks to their ruling planet, Mars, named after the god of war. Let off some steam and tap into your competitive side by adding more cardio to your routine. "Cardio keeps your body healthy and your mind sharp and can even help reduce anxiety by filling your lungs with deep breaths," Jordan Hosbein, an NASM-certified personal trainer, told POPSUGAR. "Running, rowing, swimming, boxing, or high-intensity interval training (HIIT) are great ways to add cardio into your routine." And whether you're trying to keep pace with others in a group fitness class or competing only with yourself, these workouts are sure to bring out that fiery Aries spirit.