When you exercise, your body produces something called endorphins (it's sort of like morphine), and it makes your body feel less pain and make you feel more happy. In this case, the endorphins combat your stress and make you feel better mentally.
Answer:
overstimulation is the correct answer
The correct answer for this question would be the Cerebral White Matter. The Cerebral white matter is the type of white matter fiber tract that connects the cerebrum to lower centers like the spinal cord. <span> This consists mainly of myelinated fibers bundled into large tracts. Hope this answer helps. </span>