The U.S. Army Created An Algorithm That Tells You How Much Coffee You Need

Photo: Wikimedia Commons and

Have you ever wondered exactly how much coffee you need to stay awake? There are times when you don’t drink enough and fall asleep during the day. There are also times where you might drink too much and get too jittery. Wouldn’t it be nice to know exactly how many cups it would take to get to optimal energy levels? The U.S. Army thought so too!

So they created an online tool that tells you how much coffee you would need to stay awake. This can also be a great tool to help you reduce your caffeine consumption if you are trying to cut back. It sounds very helpful!

Learn more about this coffee tool from the U.S. Army

Photo: Wikimedia Commons

The Army worked from a study that showed how lack of sleep affects job performance. The study also tested how much caffeine people needed to stay awake and become more alert. This would be very important for those who work in the U.S. military! They need to be awake and alert while they are working at all times, regardless of how much sleep they’ve been able to get.


The online tool that was created should help reduce participants’ caffeine consumption by 40 percent and increase their alertness by 40 percent as well. According to Entrepreneur Jaques Reifman of the U.S. Army Medical Research and Development Command, “Our 2B Alert Web tool allows a person […] to optimize the beneficial effects of caffeine while minimizing consumption.”

While the study was focused on the U.S. Army, members of which need to stay alert even with little sleep, it could be great for people who work long shifts too, such as nurses or doctors.


So how does this online tool work? First of all, it is completely free. All you have to do is enter in your email address to get access.

According to Entrepreneur, “the Open Access tool allows you to select individual factors to help calculate the exact right amount of coffee for you, including what time of day you need to be awake and alert for. But to really get the most from the tool, the researchers advise eating the right amount at the right time too.”

Photo: Wikimedia Commons

It continues, “For example, if you take someone who’s been awake all night but needs to be as alert as possible between 9:00 and 17:00 and needs to consume as little caffeine as possible — when and how much caffeine should they consume? This is the kind of question 2B-Alert is meant to answer.”

If you want to try it, click here to register and access the tool developed by the U.S. Army and try for yourself.

This story originally appeared at Do You Remember by Lauren Stewart.

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