Every time you get a headache, the first thing your body does is close off blood vessels and reduce oxygen flow to that area in order for inflammation to decrease. This process also reduces pain by lessening swelling in surrounding tissues. However, when we suffer from an acute injury or illness (like a sports concussion), our immune system can overreact and cause too many of these inflammatory proteins called cytokines—which are designed to fight against foreign invaders like viruses–to be manufactured instead of continuing with its normal processes during healing times which causes more damage than necessary because it creates unnecessary tissue swellings as well. Hyperbaric chambers help combat this issue by increasing the amount of oxygen available within your blood plasma and other waterborne fluids throughout the body.