@drwilliamli: 🏃♂️ Train hard, but don’t crush your immune system. Intense endurance training can temporarily suppress immunity, which is why many marathon runners get sick right after a race. 🫐 The science-backed fix? Eating about 1 cup of blueberries daily for 3 weeks before a marathon helped athletes keep key immune cells elevated even after race day. Food isn’t just fuel, it’s protection. ➕ Follow for more food-as-medicine insights. #FoodAsMedicine #ImmuneHealth #Blueberries #EnduranceTraining #AthleteHealth #LongevityScience #PerformanceNutrition #DrWilliamLi