People are often curious and ask the question as to why alcohol seems to make some people really emotional.
Well, alcohol doesn't really cause the emotions. What alcohol does is alcohol lowers people's inhibitions and often allows people to express things that they may not otherwise express. So, for instance, someone may be feeling really upset and really emotional and really holding it in, and then when they drink it lowers those inhibitions. And they may start crying, and may start expressing that distress. Whereas otherwise if they weren't drinking, they would still have that ability to hold that in.
So sometimes people actually use alcohol to, in fact, allow themselves to express emotion, whether that be positive emotions or negative emotions. So alcohol, again, doesn't cause the emotionality, alcohol just facilitates the expression of it.