"Do you find yourself feeling run-down even though you’re training hard and eating what seems like a healthy diet?" "Have your workouts started to feel harder than usual, and your performance is declining?" "Have you lost your menstrual cycle or noticed frequent injuries that just won’t heal?" Here’s What You Need to Know. These could be more than just signs of overtraining — they might point to a condition called Relative Energy Deficiency in Sport (RED-S). What Is RED-S? Re