endorphins
Endorphins are the chemicals released in your body during exercise that help improve mood and reduce pain sensations, creating a sense of well-being and happiness.
There are several theories as to what chemicals are responsible for the relaxing effect sometimes felt during exercise. Neurotransmitters such as serotonin and dopamine may play a role, as may anandamide (which binds to cannabinoid receptors) and endorphins (which binds to opioid receptors).
It can be because people love that feelnig of being energized and accomplishing things. This is usuall ynever a bad thing unless one over trains, which can be detrimental as opposed to beneficial.
Chemicals released by neurons are called neurotransmitters
ketones
Depression in Paradise - 2007 was released on: USA: 2007 (internet)
Abnormal Depression - 2012 was released on: USA: 28 October 2012
Depression The Movie - 2012 was released on: USA: 21 September 2012 (premiere)
Depression Out of the Shadows - 2008 TV was released on: USA: 21 May 2008
It Is Written - 1956 Depression and Its Causes was released on: USA: 6 November 2011
Her Morning Exercise - 1898 was released on: USA: January 1898
neurotransmitters