A Quick Hack for Finding Your Optimal Productivity Time of Day (using Circadian Biology)

Keenan Eriksson
3 min readMar 8
Photo by Minh Pham on Unsplash

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Many people refer to biohacking with regard to the benefits for health and fitness, but in my opinion, the most interesting use is for productivity.

Biology governs neurology, and therefore our minds. Paying attention to our biology is one of the most powerful ways we can optimize our minds.

And today, I want to talk to you about a quick hack for optimizing your productivity using circadian biology.

Find your lowest Temperature Point While Sleeping

Basically, we can use the laws of circadian biology to determine when our most productive time of day is.

Every night, approximately 2 hours before our average wait time is our lowest temperature point of day.

Knowing when this time happens is useful for a number of things, but one of them is understanding when we will be most productive during the day.

You see, most people are most alert and ready to be productive 4 hours after this low temperature point.

And you don't need to use a thermometer to find it.

For one week, keep a pen and paper next to your bed and write down when you wake up.

Then, find your average waking time between all of the days.

Subtract 2 hours from that time to determine your lowest temperature point during the night.

Then, add 4 hours and you now know when you are likely to be most productive during the day.

For example, if I get up at 8:00 a.m. on average, then my low temperature point is probably at 6:00 a.m. in turn, my productive time of day is likely to be 10:00 a.m.

Now, why didn't I just tell you to find your average wait time and add 2 hours to that?

Because the low temperature point of day can be useful for other habits and tactics. You can also use this information to shift your circadian rhythm and make other changes.

Keenan Eriksson

Biohacking-Based Life Coach & Author. I Help My Clients Overcome Disease & Optimize Their Lives Using Biology.