Ever noticed how an after-work drink on Friday makes you feel sluggish all weekend, even though a drink on Saturday doesn't have the same effect? You're not alone -- it happens to a lot of people. And according to nutritionist Jane Clarke, there's a perfectly reasonable explanation for this -- it has to do with how alcohol is processed by your body after a long, hard day or week of work. In other words: If you're tired, stressed or depressed, one drink can be pretty potent, even for the most seasoned drinkers.

Other things that affect how the drink affects you? If you've just come from a workout, a cocktail will affect you more easily than it would if you hadn't worked up a sweat. Similarly, if you haven't eaten a nutritious meal beforehand, alcohol will affect you more than it would have if you had.

However, if you're in college, you're probably thinking this is a good thing. Do your liver a favour and drink wisely.