Since becoming a postgraduate my alcohol tolerance has plummetted which is very odd. My first year as an undergraduate would see me out most nights with my housemates to at least two in the morning (probably why my student loan ran out very quickly that year). If I treid to do that now I'd keel over :-) A sign of being a bit more mature and grown up.
In regards to curing the hangovers, lots of water the night before (as much as you can stomach) and a supply of pain killers near the bed for the morning after the night before. Happy Hangover!