The experiment was to put a mouse alone in a cage with two water sources. One had sugar water that would keep the mouse alive, the other had cocaine and no nutritional benefit. The mouse would keep drinking the cocaine and starve to death.
Then someone tried the same experiment but they gave the mouse companions. With other mice around they would all eat.
Ever heard of the cocaine mouse?
The experiment was to put a mouse alone in a cage with two water sources. One had sugar water that would keep the mouse alive, the other had cocaine and no nutritional benefit. The mouse would keep drinking the cocaine and starve to death.
Then someone tried the same experiment but they gave the mouse companions. With other mice around they would all eat.
https://www.futurity.org/mice-addiction-cocaine-959182/