You have seen how the switching loop works. The final part of Unit 1 is about discovering the shape of your own day.

Attention does not remain at the same level from morning to evening. It changes in a rhythm that can become predictable enough to plan around.

Research found two average peaks in focus across different types of work: one in the late morning, around 11 a.m., and another in the middle of the afternoon, around 3 p.m.

The same research found that focus often builds gradually at the beginning of the working day. People do not necessarily arrive ready for deep concentration. They may need time to reach a focused state.

A similar process can happen after lunch. Focus may decrease for a while before gradually building again.

The other attention states also follow patterns. Boredom tends to peak around 1 p.m., shortly after lunch.

Routine attention follows a different rhythm. It often begins rising around 9 a.m., remains available through much of the first part of the day and then starts to decrease around 2 p.m.

This suggests three useful ideas:

• Your strongest focus may not appear immediately after you start work.
• The decrease in attention after lunch is common and does not reflect a personal weakness.
• The first part of the morning may be a useful time for routine or mechanical tasks while focused attention is still building.

Attention may also follow a weekly pattern. In the research, people were most focused on Monday, possibly because their mental resources had been restored over the weekend.

Focus was lowest on Tuesday, while Thursday included the greatest amount of routine activity.

Before reorganising your calendar around these findings, remember that they are averages across many people. Your pattern may be different.

Some people naturally function better early in the day, while others reach their strongest focus later. Shift work can change the pattern completely. The aim is not to adopt 11 a.m. and 3 p.m. as your required focus times.

The useful idea is this: your attention has a shape, that shape may be reasonably consistent and you can discover it.

Why does this matter? Most people organise demanding work according to availability. A difficult task goes into whichever space remains in the calendar.

This can place challenging work at 9 a.m., while your focus is still building, or at 1 p.m., when your attention is more likely to dip. The difficulty may then be interpreted as a problem with your concentration, when the placement of the task may be part of the problem.

You can begin finding your pattern over the next week. A few times each day, note four things:

• Approximately what time it is.
• What you were doing.
• Which of the four attention states you were experiencing.
• If your attention moved, whether an external event interrupted you or you switched on your own.

Three or four entries per day are enough. This is not a time sheet.

You are looking for two things:

• Your focus peaks. Look for the hours in which focused work actually happened across several days. Do not assume that your pattern matches the average. People often identify the hours they would like to be productive rather than the hours in which their focus is genuinely strongest.
• Your interruption split. Count how many switches came from external interruptions and how many began internally. The research average is 56% external and 44% internal, but your pattern may be very different. The result will help show whether Lesson 7 or Lesson 9 is more relevant to you.

Expect to find more routine and bored periods than you remember, and less time in deep focus. This is common in measured attention data and is why Lesson 2 introduced all four states.

You may also notice that observation changes the pattern slightly. Simply paying attention to your switching can reduce it. This is not a problem with the exercise. It is the simplest version of what Unit 2 will help you do deliberately.

Nothing here is scored. There is no focus score, productivity grade or streak.

Many tools for attention are built around measuring output. That can easily turn a practical working difficulty into another performance problem. This log has a different purpose: to show you the shape of your attention. The information belongs to you.

Complete the log at moments that already exist in your day, such as the end of a meeting, your return from lunch or the moment before you close your laptop.

An entry that requires its own reminder would become another interruption, which is exactly what this exercise is trying to avoid.