The wrong kind of rest
Sitting is muscular rest with circulatory and cognitive cost. Big muscles relax, but small postural muscles work continuously. Blood pools. Cerebral perfusion slips. The brain reads the cumulative state as fatigue.
It’s not “real” rest in any restorative sense.
Why standing isn’t magic either
Standing avoids some of the costs but adds others (leg fatigue, foot pain). The actual antidote is movement — change the posture, walk briefly, then return to whatever you were doing.
Variety is the variable.
The 90-second fix
A 90-second walk and a glass of water beats a coffee for mid-afternoon energy in most people. The combination addresses dehydration and circulation simultaneously.
Try it. The skepticism wears off after a week.
How Upster runs the 90-second fix
Reliable cadence beats willpower.
- Workday break nudges every 45 minutes.
- Brief movement suggestions.
- Streak tracking.
A simple energy plan
Three rules.
- Stand every 45 minutes.
- Walk after meals.
- Replace one afternoon coffee with a walk.
Energy is built, not borrowed
Coffee, sugar, and pushing through are loans the body charges interest on. The interest comes due as a worse afternoon, a worse evening, or a worse next day. Movement, sleep, and steady food are deposits. They take longer to accumulate but they don’t bounce.
If you only do one thing for energy, walk after lunch. The combination of post-meal glucose smoothing, brief circulation boost, and a few minutes away from screens does more than the next three coffees combined. It’s the most under-utilised energy intervention in office life — and it costs nothing.
A useful frame: ask yourself why your energy crashes. The answer is rarely “I need more caffeine.” It’s usually some mix of long unbroken sitting, a heavy meal, dehydration, and not enough sleep last night. Each of those has a real fix that isn’t pharmaceutical. Once you see the crash for what it is, the right response is obvious.
Try this for one afternoon
Skip the 3pm coffee. Instead, when the afternoon dip hits, stand up and walk for five minutes — outside if possible, around the office if not. Drink a glass of water on the way. Sit back down and notice what happens over the next 15 minutes. For most people, the energy bump matches or beats the coffee, and the evening sleep is noticeably better.
Repeat this for one work week. By Thursday or Friday, you’ll have a pretty clear sense of whether walking-instead-of-coffee works for you. Many people find it works so reliably that the coffee habit fades on its own.
Source: American Heart Association — Activity improves circulation and energy levels through cardiovascular and metabolic effects.
Keep reading: the home page, how Upster works, sitting and energy, sitting and anxiety, and breaks that improve focus.