Actually, caffeine makes you more tired. It gives you a short burst of energy, similar to an adrenaline rush then crashes your system down worse than you were before drinking that cup of coffee or energy drink.

Most people thinks it works because it gives them that boost of energy when they're still waking up, but the 'crash' comes when they would naturally be awake. The truth is that you'd be more alert and feel much better throughout the morning hours if you wean yourself off that coffee addiction.

The best wake up in the morning method is to eat a piece of fruit or do your regular exercise routine before you go in to work. You'll be much more awake and with the fruit you'll be getting a ton of healthy vitamins and minerals on top of that natural sugar that snaps you out of your sleepy state.

(btw, its called breakfast because you are breaking your nightly fast, which is the longest period of time each day that people normally go without food simply because they are sleeping)

You could have just said BAD BAD coffee...