Frankly the heat is mostly why I stopped walking. I figured at first I might just be out of shape as hell, but I decided to take one today while the rain had cooled down the temperature and it was mostly pleasant. Comparatively I tried to walk the same route a few days back and gave up early because I was drenching in sweat, slunched over, could hardly see in front of me and my head was throbbing.
Infrastructure is a big thing too. When I’ve had to walk in less urban areas with little or no sidewalk, walking on grass next to the road with massive cars zipping past you is unnerving.