Did you know that coffee is a fruit? And when ripe, it is very sweet and red—affectionately called a cherry.

It consists of a rind and pulp, and in the center are the seeds.

The legend tells of an African goat herder—in what is today Ethiopia—who one day observed the stimulating effect that the leaves and berries of a certain shrub produced on his herd.

The animals that chewed the plant became more spirited, climbed the mountains with agility, displayed greater endurance, and traversed kilometers of steep ascents.

Brain Boost: research confirms that coffee has antioxidant effects, in addition to improving memory, focus, and concentration. And, of course, it gives you that major energy boost!

How? By "interfering" with the action of the substance that signals that the body is tired.

The Downside: that’s why it can also mess up your sleep, since it can stay in your system for up to 6 hours.

And not just in terms of quantity, but also quality—preventing you from sleeping deeply.

So, unless you want to stay "wired"—or rather, awake—to study, drive, work, exercise, or even watch a movie, don't drink coffee too late at night.