In addition to exercise, ATP is critical for normal physiological function in all cells. However, it is particularly important in the functioning of the heart and blood vessels and in maintaining energy in the brain to support cognition and signals involved in sleep, memory, learning, and movement. ATP also helps maintain healthy function of the gut and related immune activity and supports building strong and healthy skeletal muscles to support bone structure.
ATP metabolism and production decrease with age, particularly in the blood and skeletal muscle. This may contribute to the aging process and a gradual decrease in function.