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14 Things That Happen to Your Body When You Overdose on Caffeine

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Most of us use coffee, tea, and energy drinks on such a regular basis there’s a good bet we take them for granted. But did you know that it’s possible to have a caffeine overdose? Most people don’t even realize it until it’s too late, but it far more common than you think. Somewhere between the second and third cup of Starbucks during the day, we’re willing to bet some of you might be feeling twitchy, thirsty, or even dizzy and anxious. 

It may sound ridiculous, but caffeine is an addictive drug that can lead to some serious health issues. It can adversely affect brain chemistry… and that’s something you really don’t want to screw with. In the worst cases, it can even kill you. Don’t believe us? Check the list below and find out the dangers posed by caffeine. 

  • You Can Die from Drinking Too Much Caffeine

    It’s true - you can actually die from drinking too much coffee. Of course, the question is, how much is "too much"? Well, assuming you weigh about 150 pounds, a little more than 62 cups would be enough to bring you down for good.

    Most people will never drink 62 cups of coffee at one time, but powdered caffeine is a far more likely way to accidentally overdose on caffeine. In 2010, a British man died from a caffeine overdose caused by washing two spoonfuls of pure caffeine powder down with an energy drink. According to the coroner, "the dose Bedford consumed was equivalent to 70 cans of Red Bull."

    Powdered caffeine is inexpensive, legal, and widely available online, but just a tiny, tiny amount goes a long way.

  • You Can Start Feeling Negative Effects from Just One Large Starbucks Coffee

    A Red Bull has about 80 mg of caffeine per serving, and that thing is supposed to give you wings. A venti Starbucks coffee, however, has 415 mg, which is no small amount. Even though you may not technically overdose, taking in just 400-600 mg of caffeine is enough to start giving you the first symptoms of an overdose. 

  • You Can Have Seizures

    Coffee alone is unlikely to trigger seizures. However, a high school student in Ohio took too much caffeine powder and ended up dying from an irregular heartbeat and seizures. The moral of the story? Stay the heck away from caffeine powder. 

  • Your Anxiety Will Shoot Through the Roof

    Photo: Fernando Rebêlo / via Wikipedia

    First off, if you’re an anxious person in general, you really shouldn’t be drinking coffee. But if you drink too much coffee, chances are you’ll become anxious no matter what your emotional history. In fact, the symptoms of a caffeine overdose (fear, nausea, nervousness, tremors, heart palpitations) have been said to be very similar to those of a panic attack - and they are only made worse if you were feeling anxious before you began consuming caffeine.