Hangovers are just brain dehydration - predominately caused by specific types of alcohol.
Spirit drinkers are far less likely due to mixers counteracting it, ale drinkers are doomed from the start cos that's how ales roll. (they do double the dehydration per unit)

Either way, morning bonce dehydration is easily stopped before it happens - just employ the same methods you'd use to survive summer before hitting the hay... Providing your summers aren't weak ass shit.

Even if you do wake up feeling like someone drove over your head you're only a couple of (non alcoholic) drinks away from curing it before it ruins your day. But why waste the hour or so fixing it when you can bounce out the bed as if nothing happened?

Science bitch, employ it!