Ordered carrier SC500-AF, WOW, what a well built product! I've been a welder/fabricator for over 47 years using all forms of welding processes. I know quality workmanship, this has well designed construction and welding assembly.
But exercise also stimulates brain regions that are involved in memory function to release a chemical called brain-derived neurotrophic factor (BDNF). BDNF rewires memory circuits so they work better.
They may also regulate the release of hormones from the pituitary gland, notably growth hormone and the gonadotropin hormones. Some researchers have learned that strenuous exercise releases endorphins into the blood stream. Others have found that endorphins are released during orgasm, as well as during laughter. Endorphin release may occur with frequent sex and masturbation. On the other hand, there doesn't appear to be evidence that too much sex (or exercise or laughter, for that matter) and elevated endorphin levels deplete the body of endorphins and then result in depression, etc.