

Long days are just the reality of some jobs, and if you are already getting up every hour, you are doing something most people never manage. That habit is worth protecting. The aim now is not to break more often, but to make each break actually count and to keep the whole thing going when the day stretches long and you are tired.
Here is the part that quietly catches people out. Your body does not register a break because an hour has passed. It registers one when something changes. Stepping away from your screen only to scroll your phone keeps your neck bent, your eyes fixed up close and your back in much the same shape, so for your body almost nothing has happened. A break lands when you change something real, standing up, looking across the room, walking a few steps. Same timer, far more benefit.
By hour eight or nine, the will to get up and move fades, and that is completely normal rather than a lack of discipline. The trick is to not rely on remembering. You could try pinning your breaks to things that happen anyway, the end of each meeting, waiting for the kettle, or a gentle recurring nudge on your phone. When the habit runs on autopilot, it survives the tired end of the day, which is exactly when your body needs it most.
A long day is a long stretch of close focus, and eyes tire much like anything else held in one position. Whenever you take a movement break, let your eyes come along by looking at something far across the room for a few seconds and having a proper blink. It costs nothing and takes the edge off that gritty, tired-eye feeling that tends to build late in the day.
Over a long day the simple things slide. Keeping water within reach helps you stay comfortable, and refilling the glass doubles as another reason to get up and move. A proper meal break away from the screen, rather than eating at the desk, resets both your body and your focus for the back half of the day.
A long day tends to leave a bit of stiffness behind, and it helps not to carry it straight into tomorrow. A short walk on the way home, or a few minutes of gentle movement once you are done, lets everything unwind. If you would like something to follow, VIDA has a short guided stretch video you can use at your own pace to ease out the day.