By the afternoon, you read the same sentence three times and reach for your phone. Yet you feel you should focus all workday.
Here’s why focus starts the evening before and how a day of blocks works. A block is a timed stretch of deep work: focused work on one goal. You learn what to check before each block, how to take breaks, what helps after lunch and when to stop.
A focused day starts the evening before
When you’re tired, you can’t concentrate. That’s why every block you do depends on being rested and awake.
Rest begins when your workday ends. Recovery in the evening is as much a part of your productivity as the work itself. Your brain needs that time to work well again tomorrow.
Sleep is a big topic on its own, but it can be solved. It’s the most important investment in your productivity, so learn what short nights do to your focus. For the evening after a full day of blocks, read how to recover after deep work.
A focused day is a string of blocks
With rest in place, a focused day is the same block, repeated after every break. That repetition multiplies your productivity. The second block also starts faster, because your desk is still set up.
If you want a number for your day, read how many hours of deep work per day are realistic.
In my view, a few focused blocks are worth more than a whole day of half-concentrated work. Use one protocol sheet for the whole day: a sheet of paper for your goal and your steps. Write the goal of each new block below the previous one.
By the evening, the sheet holds a complete list of what you got done. Be proud of that list, and judge your day by its results instead of counting blocks. To see how one block repeats through a day, read what a deep work routine looks like.
Check how awake you are before every block
Every block of that day starts with an honest check of how awake you are. Ask yourself if you can think clearly, and don’t fool yourself. Your answer sets how long a deep work session should be for this block.
- Fit: 45 or 90 minutes, full power.
- Not quite fit, meaning a little tired: a shorter block, or get your body moving first.
- Massively tired: a power nap of 10 to 20 minutes, or postpone the block.
Your blocks don’t all have to be the same length, because your energy goes up and down through the day. Maybe you do 45 or 90 minutes in the morning and only 25 in the afternoon. So you repeat the check before every block of the day.
Real breaks keep the quality from dropping block by block
Whatever length you pick, your brain needs a real break after each block, or quality drops from block to block. A good break empties your mind and gets your body moving again. A bad break fills your mind with new input and keeps you in your chair.
The break is when your phone is most dangerous, because a quick look turns into 15 minutes of scrolling. Emails, messages and calls pull your mind into other matters. Instead of your phone, step outside for fresh air or do a quick household task.
Your break length follows the length of your block. To see the numbers, read how long your breaks should be.
Set a timer for the break too, so you don’t keep wondering when it’s over. And don’t skip the break, because more work doesn’t mean more output.
What helps against the afternoon slump?
Even with real breaks, many blocks get harder after lunch. In studies, a short nap, bright light and a high-fat lunch each softened part of the drop after lunch. In two studies, memory, attention and switching between tasks all dropped after lunch.
| Study | Who and what | What they found |
|---|---|---|
| Dhillon, Tan and Mattes (2017) | 86 overweight or obese adults; high-fat almond lunch or high-carb lunch | Memory dropped 57.7% less with almonds; attention dropped about the same |
| Slama and colleagues (2015) | 15 adults: nap or no nap; 10 adults: bright blue or dim light | Both reduced the after-lunch drop in task switching, with less fatigue |
| Lovato and Lack (2010) | The effects of napping on cognitive functioning | Naps of 5 to 15 minutes lift alertness quickly, for 1–3 hours |
A full meal ruins the next block, so my rule is to eat small to medium portions at lunch. Digesting a large meal takes energy that your brain then lacks. For what to eat, read about foods that help you focus.
If you nap, keep it to a power nap of 10 to 20 minutes. Lovato and Lack (2010) note that naps over 30 minutes can leave you slow and groggy for a short time. They also say that their results are not yet certain.
Stop when your blocks clearly get worse
Even with good breaks and a light lunch, your focused day ends when your blocks clearly get worse. You take longer and longer to start, and your protocol sheet doesn’t help anymore. When you sit in front of the task and nothing happens, stop, even if you’ve only worked three hours.
The goal is balance: to work well across weeks and months instead of giving everything on a single day. If you’re unsure whether to do another block, stop. One block less is better than one block too many.
Before you leave your desk, write one sentence about what you’ll start with tomorrow. In the morning, you sit down and know what to do. For the rest of your end-of-day routine, build a shutdown ritual.
Tomorrow starts with that sentence and an honest check of how awake you are. After that, the steps inside each block decide whether your last block still gets good work done. See how it works →
FAQ
Does coffee help you stay focused all day?
Coffee can’t replace rest if you want to stay focused all day. Caffeine hides tiredness, and when it wears off, that tiredness can hit at once. Do one block of focused work with coffee and one without, on two days, and compare your output.
Where does music fit in a focused day?
In a focused day, music belongs in your breaks, where listening or dancing is fine. During a block of focused work, skip it, because music uses thinking power you need for the task. If you can’t work without music, use one instrumental playlist on repeat.
Does drinking water help you stay focused all day?
Water matters if you want to stay focused all day. Riebl and Davy (2013) report that losing even 1 to 2 percent of your body water can harm your thinking. Drink a glass before each block of focused work and refill in breaks, without overdoing it.
