Social occasions and celebrations are pretty good reasons for having a drink. Reducing stress, releasing anger, or trying to prove something to someone are unhealthy motivations for alcohol consumption and may actually quicken the intoxication process and increase nasty side effects. Hold that line. Crossing your line can easily send you into hangover land the next morning. Consider the congeners.
Congeners are natural by-products of alcohol fermentation.
The higher the congener content, the greater the hangover. Gin and vodka have the fewest congeners, while bourbon and red wine claim the most. Hangover helpers and healthy drinkers recommend one drink per hour as a guide. This rate gives your body a chance to process the alcohol without sending it special delivery to your head. Avoid alternating the types of alcohol you consume.