Uploaded June 2026 | Updated September 2026, 8 minutes ago
You can't focus hard all day (please stop trying).
Your brain runs focus in 90-minute waves.
Fight the wave and you lose the day.
It climbs, it peaks, and then it dips.
And in that dip is usually when you reach for your phone or open your email, even when nothing's buzzed.
Most people break it right here.
You check email while you're still climbing toward that peak and your focus drops straight back to the bottom.
Gloria Mark's research says it takes 23 minutes to climb back up.
Do that a few times a day and your sharpest hours are gone.
The fix isn't more willpower. It's one undisturbed 90-minute block in your calendar.
Want to know how much focus you're losing?
I built a free 3-min scorecard that measures it.
How sharp your focus is. How much energy you've got left at 5pm. Whether you run the day or it runs you.
Then a strategy to fix the weakest one.
Take it here: extra-workday.scoreapp.com
You can't focus hard all day (please stop trying).
Your brain runs focus in 90-minute waves.
Fight the wave and you lose the day.
It climbs, it peaks, and then it dips.
And in that dip is usually when you reach for your phone or open your email, even when nothing's buzzed.
Most people break it right here.
You check email while you're still climbing toward that peak and your focus drops straight back to the bottom.
Gloria Mark's research says it takes 23 minutes to climb back up.
Do that a few times a day and your sharpest hours are gone.
The fix isn't more willpower. It's one undisturbed 90-minute block in your calendar.
Want to know how much focus you're losing?
I built a free 3-min scorecard that measures it.
How sharp your focus is. How much energy you've got left at 5pm. Whether you run the day or it runs you.
Then a strategy to fix the weakest one.
Take it here: extra-workday.scoreapp.com
