If you drink more often this is probabably not a problem. Your body adapts.

True within limits!

Try whatever the local version of Liquid IV is.

The Pareto effect applies to alcohol consumption as well.

20% of the people consume 80% of the alcohol.

That's really unusual.

3 bud lights? Yeah.

3 unfiltered IPAs? I’m not getting up from bed the next day.

I almost never drink so when I do..... there's a very high chance I'll be nursing a migraine the next day. I've recently started to have a glass of wine after dinner in an attempt to train my body to tolerate it. It seems to be working.

3 beers and a sick day seems very uncommon.3beers and going back to work sets you around the Ballmer peak[0]. 0.5L of beer will increase the alcohol to 0.05%, and drop below 0.02% in around 2h.(edit talking about standard lager/ale with 5-5.5% alcohol)

[0]: https://xkcd.com/323/

Get checked for celiac.

Dude comes to complain about a hangover after few pints of bad ale, gets an unsolicited diagnosis for an auto-immune disorder.

I’m pretty sure the average daily gluten intake of this person is much higher than that from 3 beers..

Can't hurt to check. If I'm right, blamo, saved him a lot of bad times

I know a few people who are celiac and there are much bigger giveaways than having a hangover after 3 beers (the latter of which isn’t that uncommon of problem for people who don’t drink often).

Depends on... everything?

Last week I drank 3 liters of beers and was pretty fine. It's when I went for the next liter and vodka when I... were fine, honestly. Not great, sure, and any sport activity was out of question. The biggest problem was what I came home at 5 AM which of course messed up my schedule again.

Might also have to do with the quality of the beer though ;)

Not everybody is equal and body adapt to regular consumption.

Although I am not a heavy drinker (mostly only drink alcohol on weekends), I am fine with 3-4 6.5% beers in a day, or similar consumption of alcohol in wine, especially if not binge drinked but over the course of a day mixed with meals. Even the nights I get totally drunk I very rarely feel sick the next day. The reason: even when I drink alcohol I also drink a lot of water. Usually the next day's sickness is due to dehydratation of the brain. If you keep hydrated (with water!) on top of your alcohol consumption even if you are drunk you won't suffer from it the next day.

Having said that, not feeling sick the next day doesn't mean you don't do any damages to your body and your brain.

Hah I would call “good” beer one that I can drink 4+ (2L) get intoxicated (so 5% or more) and still be OK next morning.

Different beers affect me differently, sometimes I would feel bad next day from just 2 beers. While it does depend a lot if I was active (dancing) and how much water I took on alongside the beer, the brand itself makes a huge difference. If you experiment a bit you might find that some beers are actually bad. Not sure where this comes from, trace amounts of methanol? Some other contaminants? Not sure but it does make a difference.

Right now my fav beer is Hoegaarden for example :-D

Are you by any chance East Asian? It is well known that people of that race have much lower tolerance for alcohol, due to some genetic differences (liver metabolizing alcohol differently)