Placeholder Image

Subtitles section Play video

  • Many of us wake up with one thing on our mind - COFFEE!

  • Or at least, some form of caffeinated beverage to get your day started.

  • But what if I told you you've been drinking your coffee incorrectly this entire time?

  • We all have an internal biological clock called the circadian rhythm that regulates many processes throughout our body, including how sleepy we are through the day.

  • And it's this clock that controls the release of a hormone called cortisol.

  • Often referred to as the stress hormone because it's secreted in high levels during your body's fight or flight response.

  • Cortisol also happens to be related to your level of alertness through the day.

  • And it just so happens that between 8 and 9 AM cortisol levels peak.

  • This means that your body has a natural mechanism to wake you up.

  • And while you may think that caffeine can complement this mechanism, scientists have actually found that consuming coffee or energy drinks during peak cortisol production greatly diminishes the caffeine's effect.

  • And builds up a greater tolerance to the drug in the long run.

  • Overall, that means you get less of a buzz, and need even more to stay awake in the future.

  • We break down caffeine addiction and tolerance in a previous video "Your Brain on Coffee", which you can check out here!

  • For this reason, drinking coffee after your cortisol surge at 9AM is probably best.

  • Scientists have found a few other times where cortisol peaks as well: between noon and 1pm, and 5:30 and 6:30pm.

  • Which means your best drinking your coffee outside of these times.

  • These cortisol spikes - and your circadian rhythm in general - are most strongly regulated by sunlight, meaning your sleep schedule doesn't come into play as strongly.

  • So what if you wake up extremely early, or really late, should you drink coffee right away then?

  • Well, scientists have actually found that cortisol levels do indeed increase about 50% right after you wake up, regardless of the time.

  • Science says, wait at least an hour to get your cup of Joe, and your body will be optimally ready to go!

  • Got a burning question you want answer?

  • Ask it in the comment, or on Facebook and Twitter.

  • And subscribe for more weekly science videos.

Many of us wake up with one thing on our mind - COFFEE!

Subtitles and vocabulary

Click the word to look it up Click the word to find further inforamtion about it