There's a famous experiment that sums it all up perfectly I think you're referring to the Rat Park experiment (https://en.wikipedia.org/wiki/Rat_Park https://e

There's a famous experiment that sums it all up perfectly I think you're referring to the Rat Park experiment (https://en.wikipedia.org/wiki/Rat_Park https://en.wikipedia.org/wiki/Rat_Park), and (as always) its conclusions are not as solid as the myth implies. That's not to say its results have been disproven, but they haven't been confirmed with other studies either.