system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: In German we have a saying: "Wein und bier das rat ich dir, bier und wein da sag ich nein." Translates to "Wine and beer I'd recommend, beer and wine I must say no". Basically, why does it matter what type of alcohol you drink before another type of alcohol?

The saying is absolutely true for me. If I drink even one glass of wine after a beer, I pretty much always have to puke.

Similarly, the same problem exists for me between alcohol and weed. If I smoke and then drink, I'm good (really good). But if I drink and THEN smoke, my brain starts spinning.

What exactly is happening?
gpt
In English we say "Beer before liquor, never sicker. Liquor before beer, never fear."

The fact is, though, that there's no scientific evidence to support the idea that the order of your drinks makes any difference in how you feel after.

For people who think they notice a trend, it probably has to do with what other behaviors they engage in depending on what kind of alcohol they're starting with.  Whether or not they're eating food, or drinking water, how active they are, etc.