Living in Germany (so under normal circumstances not a very hot climate) i shower once a day except when going to the gym, doing hard manual labour and so on.
The interesting thing is: When i was a kid and young adult (so in the dark ages of the 80s to late 90s) i only showered once every 2 - 4 days and never smelled bad…
HERETIC! The true salvation lies in Plan9! Trust the rabbit, renounce the penguin!