Andrew Huberman· PhD
But if I keep the mouse in that cage for the next 48 hours, something extraordinary happens. When I come 48 hours later, that mouse is drinking almost exclusively from the sugar bottle. During those 48 hours, the mouse learned that there is something in that bottle that makes me feel good. And that is the bottle I want to consume. And that is the fundamental basis of our unquenchable desire and our craving for sugar and is mediated by the gutbrain axis.