In the air forces basic training, we were made to recite this clause every morning during our initial formation and at various times throughout the day:
All trainees are reminded: drink 1/2 to 3/4 canteen per hour, not to exceed 12 canteens per day. You will drink 3 non-caffinated, non carbonated beverages with each and every meal.
I guess they were serious!
There’s a whole documentary about his death search for it. But medical investigators revisited his case decades later and found all evidence to link excessive intake of water to be the cause of death. Caused the brain swelling which killed him and was originally suspected to be drug induced (?) and later reversed if I recall correctly.
Dogs (especially large dogs) can get this too. It’s called bloat and can be deadly. If your dog is overheating it’s important to let them cool down before giving them water