I think I've trained myself into doing that. I've been running long distance for a while now (this year's full marathon will be my 6th, I ran my first full marathon in 2018), although I'm still very slow. I used to carry a bottle of water when I go on long runs, but I hated carrying anything in my hands while running. I also never decided to buy those bottles that you can wear on a vest or on a belt. Instead I trained myself to not need to drink water if the run is under 25km, and plan the route to make pitstops at home if it's over 25km.