Questions people ask · The mind

Why can’t I stop thinking at night?

思则气结sī zé qì jié · thought knots the qi

Classical name
神不守舍 shén bù shǒu shè · the spirit not keeping its house
The line
Thought knots the qi — Suwen, chapter 39
Usually sorted into
Heart and spleen both empty · yin deficiency · liver qi bound

Because the mind has nowhere to go. Chinese medicine says the spirit is housed in the heart and rests in the blood at night; when the blood is too thin, the heart too hot, or the day’s thinking too knotted, the spirit stays up and walks. The Suwen’s line is that thought knots the qi. The usual pictures are a tired, overworked mind, a hot and dry one, and one wound tight with unfinished business.

Plate

Hands writing case notes with a fountain pen, seen from above.
思则气结 · sī zé qì jié · thought knots the qiWriting by hand. The oldest advice for the mind that runs at night is to put it down somewhere outside the head, and the tradition would say a page is a better house for the day’s thoughts than the liver is.

答

The short answer

The tradition does not think of thinking as something the brain does alone. It gives it a home, the heart, which houses the spirit, 神; a worker, the spleen, which does the actual turning-over of thought, 思; and a bed, the blood, which the spirit lies down in at night. A mind that will not stop at midnight is read as one of those three failing: the bed is too thin, the house is too hot, or the worker has not been allowed to put the day down.

That gives three pictures, and they feel different from the inside. In one, you are exhausted and the thoughts circle slowly and pointlessly. In another, you are hot, sharp and dry-mouthed and the thoughts are fast. In the third, the thoughts are about something: the argument, the email, the thing you should have said. The plain causes sit under all three: caffeine after noon, screens in bed, a late meal, alcohol, and a day with no gap in it.

神

What the tradition calls it

The Lingshu’s chapter on the spirit lays out the chain from perception to thought to worry, and it is the oldest description we know of a mind that will not stop. It also says which organ holds which link, which is why the Chinese physician asks about appetite and tiredness when you have come in about your thoughts.

Lingshu, chapter 8The Spiritual Pivot, On the Root of the Spiritc. 200 BCE

What takes charge of things is called the heart. What the heart recalls is called intention. Where intention is kept is called will. Changing with the will is called thought. Reaching far by thought is called worry.

所以任物者谓之心;心有所忆谓之意;意之所存谓之志;因志而存变谓之思;因思而远慕谓之虑

The Suwen gives the consequence in three characters. In a chapter listing what each emotion does to the qi, thought is the one that knots it: not up, like anger, or down, like fear, but tied. A person lying awake at one, going round the same loop, is the picture those three characters describe.

Suwen, chapter 39Plain Questions, On Painc. 200 BCE

Anger makes the qi rise. Joy makes it slacken. Grief makes it disperse. Fear makes it descend. Thought makes it knot.

怒则气上,喜则气缓,悲则气消,恐则气下……思则气结

辨证

Which picture it usually is

Three pictures, and a fourth that is really a stomach complaint wearing a mind’s clothes. The tongue usually decides.

Tired and circling
Slow, pointless loops; exhausted but awake; poor appetite, pale face, pale tongue with tooth marks. The scholar’s picture, 心脾两虚, heart and spleen both empty: too much thinking has worn the worker out and thinned the bed. Sorted with blood deficiency.
Hot and fast
Quick, bright thoughts; warm chest, dry mouth, sweat at night; red tongue tip with little coat. The heart too hot to house anything, 心肾不交, the heart and kidney out of touch. Sorted into yin deficiency.
Wound tight
Thoughts about something: a replay, a rehearsal, a grievance. Sighing, tight jaw, worse after a hard day or a drink, waking between one and three. Liver qi bound, 肝气郁结. The tongue is often unremarkable, sometimes red at the edges.
Heavy and muddled
Thoughts that are not fast but sticky, a heavy head, vivid unpleasant dreams, a thick greasy coat on the tongue, worse after rich or late food. Phlegm clouding the house, sorted into dampness.

起居

What tends to help

The floor first, and it is the same for all four pictures. The tradition calls the mind’s part of it 调神, regulating the spirit, and it is mostly subtraction.

  • Put the day down on paper before bed: what happened, what is owed, what tomorrow needs. Ten minutes, by hand. The Lingshu’s intention, 意, is a thing that is kept somewhere; keep it on a page and not in the chest.
  • No caffeine after noon. The tradition did not have coffee and would have put it, with strong tea, firmly on the heating side of the ledger.
  • The last meal three hours before bed, and small. The heavy-and-muddled picture is very often supper.
  • Screens off an hour before bed. Light is a yang thing, and you are asking the yang to leave.
  • If you have been awake and thinking for more than twenty minutes, get up, keep the light low, write the thought down, and go back when heavy.
  • Slow the out-breath. Four counts in, six out, for two minutes, lying on your back. The tradition’s word for it is 调息, regulating the breath, and it is the oldest sleeping aid there is.

None of that is a promise, and we make none. It is the floor, and the page-before-bed is the plank most people are missing.

食

What the kitchen offers

  • Lotus seed 莲子, simmered into an evening congee, for the hot-and-fast mind: the Bencao Gangmu says it joins the heart and the kidney.
  • Jujube 大枣 with a spoon of goji 枸杞, simmered and drunk warm, for the tired-and-circling mind.
  • Reishi 灵芝, simmered long into a bitter tea, for the mind that will not settle whichever picture it is. The Shennong Bencao Jing says the red reishi benefits the heart qi and increases wisdom.
  • Chrysanthemum 菊花 in the evening cup for the hot and the wound-tight; nothing warming after four.

穴

A point classically paired with it

Three finger-widths above the inner wrist crease, between the two tendons, is Neiguan, Pericardium 6, 内关, the Inner Gate. It belongs to the channel that guards the heart, and it is the point the tradition presses when the mind will not come down out of the chest. It is safe in pregnancy.

Thumb pressure, a minute each side, slowly, with the long out-breath. It is not a needle and it is not a claim about outcomes.

慎

When this is not the right frame

Questions

Common questions about this

Is overthinking a Chinese medicine pattern?

Not on its own, but the tradition gives thought an organ, the spleen, and says too much of it wears that organ down and knots the qi. The overthinker who is also tired, pale and off their food is a picture every physician recognises, and it is one of the commonest we write readings for.

Why is it worse lying down than sitting up?

The Suwen says the blood returns to the liver when a person lies down, and the spirit is meant to rest in the blood. If the blood is thin or hot, lying down is exactly the moment the spirit finds it has no bed. Sitting up in dim light for a few minutes, then trying again, is often better than lying and trying.

Does meditation help, in this tradition?

The tradition has its own versions, regulating the breath and settling the spirit, and they are the slow out-breath and the quiet mind described above. It would add that they work at the edge of a well-laid night and not instead of one, and that the person who is hot and dry will find them easier after the evening meal has been fixed.

The reading

A page answers one question. A reading answers yours.

Thirty questions, one photograph of your tongue in daylight, and a physician’s written reading of what sits underneath — in Chinese and in English, sent within 48 hours.