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.
Of note, endorphins are released by your brain during sex, sporting activities, skydiving, fights, grievous injuries, and almost any other exhilarating activity you partake in. Get your adrenaline, among other things, pumping...