April 28, 2016: Runner's Web Digest About Subscribe 1. Study Finds: Running Is Contagious 2. Exercise 'keeps the mind sharp' in over-50s, study finds 3. When Athletes Dope, Not All Sports Are Created Equal Why it's more upsetting when endurance athletes fail drug tests than when NFL or MLB players do. 4. Why a Fast Start Makes You Suffer How quickly you ramp up oxygen use determines how tired your muscles get. 5. To eat on the go, endurance athletes need to train their stomachs 6. The Definitive Guide to the Ketogenic Diet To visualize what the most popular diets in America really look like, we built our own pyramids. Here's what a day on the fat-first ketogenic diet should look like. 7. The Best Thing to Eat Before a Workout? Maybe Nothing at All 8. After 9 Years Without a Period, I’ve Stopped Running I’m taking a break. And taking back my body. 9. Beet Juice May Work for Well-Trained Athletes After All New evidence suggests fitter athletes need a bigger beet dose to see a boost. 10. 3 Stretches Every Outdoor Athlete Should Do Daily This three-minute routine will make you faster and stronger and help keep you injury-free. 11. Love Ya, Tina, But You’re Wrong About Amenorrhea and Running 12. The Original Natural Remedy for Burnout: Nature 13. Were you fast once? Here’s how to get your speed back! 14. Dr. Gabe Mirkin's Fitness and Health e-Zine 15. The Anxious Competitor's Guide to Staying Calm We've got you covered from the start of your training to the moment the gun goes off.