PBM enhances physical performance and accelerates recovery by decreasing muscle acidosis in high-intense sports activities when applied before activity. Increased lactate levels indicate muscular fatigue or acidosis that is associated with anaerobic metabolism during intense exercise activity. High levels of blood lactate are related to impaired performance during intense muscular contraction. Besides the overwhelmingly beneficial effects on health overall, red light therapy supports muscle growth and repair by increasing the amount of ATP available, which allows for better performance and faster recovery. Red Light therapy used before training is known to prepare and strengthen the body, and after physical exertion to help with recovery.