A new video from AsapScience debunks the belief that morning coffee is your best bet for helping you feel more awake early in the day.
It actually totally makes sense. The video explains that your circadian rhythm (you know, your body's natural 24-hour cycle) controls the release of a hormone called cortisol. Cortisol is related to your level of alertness during the day. Your cortisol levels peak between the hours of 8 a.m. and 9 a.m. You shouldn't drink coffee at that time!
I repeat: You don't really need caffeine from 8 to 9 in the morning. In fact, if you drink coffee during that time, the video explains, you are actually diminshing the effect the caffeine in the coffee would've had. You'll (1) end up building a tolerance to it and (2) be a miserable morning human.
Medical Daily reports that cortisol also peaks around noon and 1 p.m. and from 5:30 p.m. to 6:30 p.m., so in addition to avoiding coffee during that morning hour, it's best to not drink it at these times either. On the flip side, cortisol levels are lowest from 3 a.m. to 4 a.m., so if you're awake at that time and need a boost, have at it then.
Watch the video below. Have your mind blown. Reevaluate everything you've ever known to be true. Then go get some coffee. You deserve it.
This article originally appeared on Cosmopolitan.com. Minor edits have been made by the Cosmo.ph editors.