De ce are nevoie de fapt sistemul tău imunitar înainte de sezonul rece. Cum te protejezi de răceală și gripă

As autumn arrives, extra care is needed to protect against colds and flu. Studies show that insufficient sleep increases illness risk, while regular aerobic exercise reduces respiratory symptoms. Long, intense workouts can temporarily weaken the immune system. Vitamin D supplementation may help reduce respiratory infections, but vitamin C and other immune boosters are less effective.