Researchers have conducted studies that have found the part of the brain that could control someone’s motivation to exercise; the dorsal medial habenula.
Treatments using this area of the brain could lead to improved treatments for depression, changes in physical activity and the inability to enjoy pleasurable or rewarding experiences.
One of the most effective non-medicinal treatments for depression is exercise. It just so happens that this structure of the habenula controls the desire to exercise in mice. By extension and through research, this area of the brain is the same throughout species for basic functions in mood regulation and motivation for rewarding experiences.
See full article at sciencedaily.com