I agree this is a huge factor. Whiskey likely does contribute to hangovers more than vodka due to the stuff that’s leeched out of the charred barrels. But the q

I agree this is a huge factor. Whiskey likely does contribute to hangovers more than vodka due to the stuff that’s leeched out of the charred barrels. But the quantity of water consumed with alcohol has a huge impact on hangovers. I am far less likely to feel hungover when I drink beer than cocktails because beer contains a lot of water and the cocktails I like do not.