Tension mapping: left against right
Twenty minutes comparing each area on the left with the same area on the right. Difference is easier to feel than absolute tension, so this scan finds what a straight sweep misses.
- Length
- 20 minutes
- Suited to
- Some practice behind you
- Published
- 13 Oct 2026
The script
Pauses are marked inline. Read at the pace that suits you; the timer below can keep time for you.
Sit or lie down so that both sides of the body are arranged the same way. This matters: an uneven position produces an invented map. 30 s
Start with the feet. Compare the two soles: weight, temperature, contact area. 60 s
The calves and shins. Then the knees, then the thighs. Which side feels denser? 120 s
The hips and buttocks. This is where the map usually starts to show something — most people carry more on one side and have never noticed. 90 s
The lower back, left and right of the spine. 90 s
The upper back, then the shoulder blades, one at a time. 120 s
The shoulders. Compare height, forwardness, and how each one reads from the inside. 90 s
The arms, both at once, then the hands. 90 s
The neck, comparing the two sides of the throat. Then the jaw: is it clenched evenly? 90 s
The face. Then hold both sides of the body in attention together and note the asymmetry without correcting it. 120 s
Take the map with you. Nothing needs fixing in the next thirty seconds; the noticing is what changes the pattern. 30 s
Anchor
the difference between a held area and its neighbour
If attention goes
Three things to do when the mind leaves — because it will.
- If both sides feel identical, look for the subtler question: which side did you become aware of first?
- If you start trying to relax the tighter side, you have switched practices. Note it and return to comparing.
- If the map stays blank for a whole area, move on. A blank area is a valid entry.
01Why comparison beats inspection
Asking "is my shoulder tense?" has no reference point, so the answer is usually a guess. Asking "which shoulder is more tense?" always has an answer and forces a comparison the body can actually make.
The same trick works for temperature, weight and size. If you want a stronger signal, alternate: hold the right shoulder in attention for ten seconds, then the left, then back. The difference becomes obvious on the second pass.
02What a tension map is for
The map is a record, not a to-do list. People who map for a week usually find the same two or three spots every time, and often find that they correspond to something specific — a phone held on one side, a bag on one shoulder, a jaw that clenches during one particular meeting.
Once the cause is visible, the fix is often mechanical: move the monitor, change the bag shoulder, raise the chair. Twenty minutes of scanning can save months of stretching.
03When the asymmetry is not muscular
Some asymmetry is structural: leg length, scoliosis, an old injury, the side you sleep on. If one side consistently reads differently in a way that does not change with posture, that is worth a physiotherapist's opinion rather than more scanning.
A rule of thumb for when to stop scanning and ask: if the pattern is fixed, if it comes with pain or numbness, or if it has changed recently without a change in your habits.
Timer
Loading the timer…
Questions that come up
How long should I keep a map?
Seven days, done at the same time each day, is enough to see the pattern. Beyond that you are usually confirming what you already know.
Should I write it down?
A three-line note after each session helps more than you expect. Memory tends to smooth asymmetry away within an hour.
Both sides feel tense. Now what?
Then compare a different pair: shoulder against hip, upper back against lower back. There is always a relative difference to work with.
Terms used here
- Body scan — Moving attention systematically through the body, region by region, at a steady pace.
- Noting — Giving what has distracted you a one-word label, then returning.
- Seated posture — Any arrangement that keeps the belly uncompressed and the spine upright without effort.
- Restlessness — The agitated quality that makes sitting still feel unacceptable.
Before you begin — Everything here is general information about attention and breathing, offered for educational use only. It is not medical or psychological treatment, and it is not a substitute for care from a qualified professional. If you have a heart or lung condition, a history of panic attacks or trauma, are pregnant, or are being treated for a mental health condition, talk to your clinician before starting breath-holding or long body-scan practice. Stop if a practice makes you dizzy, breathless or distressed.