This study looks into the effect exercise has on the immune systems of ultramarathon runners. It summarizes key findings from 5 years of research on 350 athletes who were measured for immune function, inflammation and oxidative stress. 

The data indicated that these high performance athletes experience significant immune system stress. Read the full paper here. 

For athletes of all levels, EnduraQ can help boost the immune system during training to prevent dips in your immunity after tough workouts. This will reduce your chances of being sidelined due to illness, allowing you to consistently perform at your best.