Yeah. I had to read it 5 times. My brain was telling me that there was no evidence that a hangover is a cure for work. Duh! I thought. Hangovers only make work worse not better.
I read it the same but with the idea being a hangover incentivizes you to call in sick for work thus “curing” the affliction you have with working. Except it doesn’t cure the affliction as you still have to go in eventually.