The book calls it The Dying Fire

The afternoon slump hits me

That afternoon crash is your body powering down. Five quick moves at your desk switch it back on.

Sounds like you?

“The afternoon slump hits me like a truck. I live on caffeine or sugar after 2 PM.”
“I often feel sluggish, foggy, and low on physical energy.”

In the book’s words, profile B. Not you? Take the 30-second body check

The free reset

When you hit that mid-afternoon energy slump, a short burst of activity can stoke your “dying fire” and boost alertness. Even brief exercise breaks act like plugging in a low battery: they recharge your energy and combat fatigue.

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3 minutes The “Fabulous Five” Desk Reviver

  1. Chair push-ups

    0:36

    Only on a steady chair with fixed arms and no wheels. Push down on the armrests to lift your bottom, hold, lower. 5 to 10 times. Wheels? Do wall push-ups.

  2. Desk push-ups

    0:36

    Use a heavy desk that can’t slide, or a wall. Hands on the edge, step back, lower your chest, push away. 5 to 10 times.

  3. Chair squats

    0:36

    A chair without wheels, backed against a wall or desk. Lower until you touch the seat, then stand. 5 to 10 times. Wheels on your chair? Lower to just above the seat, a hand on the desk, and stand.

  4. Toe raises

    0:36

    Heels on the floor, lift your toes up, then lower. 5 to 10 times.

  5. Side leg lifts

    0:36

    Hold the desk. Lift one leg out to the side, slow and controlled, 10 times, then switch.

1 minute March-in-Place Energy Booster

Only have a minute? Do this one.

  1. Walk or march

    Walk or roll briskly down the hall and back. Or march in place: knees up, arms swinging, enough to feel your heart rate rise.

How often

This combo builds strength, so start smart: once a day. When that feels comfortable, go to twice a day. Sore muscles? Take a rest day, or do a stretching combo instead.

Squats and push-ups never come two days running. In your first two weeks of them, give those muscles two days’ rest, then one. Not in the hour before bed.

In the studies, a short walk every 20 to 30 minutes helped most. The book’s rule of thumb: consistency beats intensity. Aim for a two-minute Movement Snack every half hour.

Never into pain. Dizzy or numb? Stop. Chest pain? Stop and get emergency help.

Why sitting does this

In the book’s own words, from chapter 1.1, Your Metabolism on Desk Days.

Break the Stillness TrapChapter 1.1, Your Metabolism on Desk Days

It’s around 3 p.m. The energy that carried you through the morning has vanished, replaced by a heavy fog. A powerful craving for sugar or caffeine is the only clear thought you have. We’ve all felt this crash. We call it the “afternoon slump” and treat it as an inevitable part of the workday. But it is not inevitable. It is a signal. Your body is telling you that its internal fire is dying down.

Think of your metabolism as a crackling campfire. To keep it burning brightly, it needs fuel and movement. When you sit for hours, you starve that fire of motion. It slowly dies down to embers, barely generating enough heat to function.

What the studies found

What to expect: In one study, short walks every 30 minutes eased tiredness the same day. Breaks more often worked better. Not a promise: every body is different.

  • USA · 2023 · 11 adults, 8 hours of sitting

    5 minutes every half hour

    A 5-minute walk every 30 minutes cut the after-meal sugar spike by 58%. Most patterns also eased tiredness, and all lowered blood pressure by 4 to 5 points.

    Read the study
  • Australia · 2012 · 19 adults with overweight, 45 to 65

    2-minute walks every 20 minutes

    Short light walks every 20 minutes lowered after-meal glucose and insulin.

    Read the study

When to see a doctor

Still tired after 4 weeks of resets, or tired all the time even after good sleep? Worth a chat with your doctor.

  • Get emergency help now: chest pain, sudden breathlessness, fainting, a sudden severe headache, a face that droops, an arm that suddenly goes weak, slurred speech, or pain after a serious accident.
  • Back pain plus any of these? Get emergency help too: numbness around your genitals or bottom, new trouble peeing, wetting or soiling yourself, or numbness or weakness in both legs.
  • See a doctor today: one leg swollen, painful, warm, red or darker; a fever with the pain; or severe pain that is getting worse fast.
  • Book a doctor or physio: pain, tingling or weakness down one arm or leg, pain that wakes you, weight loss you can’t explain, pain after a fall, or no easing in 4 weeks.

General guidance, not medical advice. New injury or surgery, pregnant, or a heart condition? Ask your doctor before new exercise.

Break the Stillness Trap

The whole system is in the book

This page is one reset. The book gives you the full Movement Combo for The Dying Fire, the Mind Resets and Fuel Resets that work with it, and a 4-week plan that makes it a habit.

Get the book

Every diagram and checklist is also in the free companion workbook.