Answer:
Psychology became a science in the nineteenth century. The roots of this new science were many. Philosophers provided psychology's conceptual framework: physiologists provided knowledge of the nervous system and experimental methods; and social reformers and psychiatrists provided motives for using science to improve the human condition.
Explanation: Hope this helps!!
Musculoskeletal Disorders or MSDs are injuries and disorders that affect the human body’s movement or musculoskeletal system like <span>muscles, tendons, ligaments, nerves, discs and blood vessels. Hope this answers the question. Have a nice day.</span>
Endorphins reducing stress levels
CORNEA of the eye remains same throughout our life span