Here at FITNESS, we believe in getting fit for good causes. In the That's the Spirit! section of our April issue (on newsstands now), we feature runner Jamie Horn, who's currently training for the Potomac River Run Marathon on May 1. She's running 26.2 miles to raise money for the Andi Foundation, a nonprofit she started to honor her best friend Andi Parhamovich. In January 2007, Andi was killed during a terrorist attack in Iraq while working on a democracy-building mission for a nonprofit. Jamie and Andi's family and friends created the Andi Foundation to help young women pursue careers in politics, humanitarian work and media. Learn more about the Andi Foundation and donate at theandifoundation.org. We wish Jamie the best of luck on her upcoming race! Want to get fit for a good cause? We put together this list of our favorite fitness charity events to help you find one near you. And if there's a cause you strongly believe in and are involved with, tell us in the comments below! Know someone who is sharing her love of fitness with others in a creative and charitable way? Email us at email@example.com.