The good news? You landed that invite to your classmate’s holiday party. The bad news? It went from chill to “chug!” in a matter of minutes . . . and now someone is offering you a drink. Before you accept, think about the ways alcohol affects your mind, body, and mood. (Spoiler alert: None of them are good.) Just a few examples: Alcohol slows reaction times, impairs your ability to make good decisions, and increases your chances of throwing up on your shoes by one zillion percent. And you should already know that drinking and driving, or taking a ride from someone who’s been drinking, are things you should never do. Read on to find out why even one drink is one drink too many: