Helping the body adapt to stress caused by events both emotional and physical such as trauma from injury and wounds, surgery, exercise, etc.. (consumerhealthdigest.com)
Lastly, it should be made with ingredients that help with mental clarity and focus to assist your body in adapting to the stress of actually working out. (ora.organic)
The sole purpose of training is to put the body under enough stress so that it will respond by adapting to the stress via muscle growth and increase in strength. (fitnessandpower.com)