Drinking Too Much Coffee Is Actually Holding You Back

Sweet, sweet caffeine — what did you even do before coffee? It's gotten you through exams, all-nighters, big projects, and mornings in general, and you appreciate that. But is coffee helping you get things done as much as you think it is? In this case, quantity may run out over quality: There may not be a direct relationship between how much coffee you guzzle and how good your work is.

Millennials drink a lot of coffee, about 44 percent of what's sold in the U.S. Nearly half of us drink it daily too. That said, researchers at the review site Best Mattress Brand found in a survey of 1,000 college students that GPAs actually drop the more coffees consumed each day.

A lot of isn't about something in the beverage — as the source might suggest, lower grades often correlates with lost sleep. Half the men and 38 percent of the women surveyed reported falling asleep in class, no matter how much they drank to stay up. One surprising quick fix for keeping your eyes open (other than getting at least seven hours of sleep)? Drink water. The caffeine in coffee provides a quick burst of energy, but it's also not the best way to stay hydrated, the benefits of which should last even after you start to crave your next cup.

We're not here to slag on coffee, though. You can drink about four cups of coffee before it starts to adversely affect your health in other ways. Coffee can also help power your workout — that's true! Finally, if you really do need that Joe to keep going, there are peak times to percolate based on your Circadian rhythms. And don't necessarily panic about how your habit can affect your budget and savings. Despite all those scolding articles telling millennials to stop wasting money on $5 lattes, it turns out that Starbucks has a backdoor way to get free refills.

Still. Catch enough z's as regularly as you can. Future you will always thank you for it.