The supine twist

If I had to give up every yoga pose except one, the one I would keep is the supine twist. This is the pose I have done most consistently across the years — most evenings, before bed, for five minutes per side. Ten minutes total. It is the most reliable single pose I know, and the small structural release it produces is the small daily reset that the spine has come to depend on.

The pose is straightforward. Lie on the back. Draw the right knee toward the chest. Then take the right knee across the body to the left side, letting it rest on the floor or on a folded blanket. The right arm extends out to the right, palm up. The gaze turns gently to the right, looking past the extended arm. The left hand can rest on the right knee for additional weight. The whole body is in a long gentle twist.

Hold for five minutes. Switch sides. Hold for another five.

What the supine twist does

Releases the small constant compression that the day puts on the spine. Most adult lives involve sitting for many hours, which compresses the lumbar discs and the small intervertebral spaces. The supine twist gently opens these spaces in the long direction, allowing the discs to rehydrate slightly and the small intervertebral muscles to soften.

It also stretches the obliques, the psoas, the lower back muscles on both sides — all the muscles that the day has, in small ways, contracted. The release is gentle but thorough, and the pose, held for the full five minutes per side, addresses a remarkable amount of the body's accumulated end-of-day tension.

What five minutes does that two minutes cannot

The first two minutes is the surface release. The muscles let go, the obvious tension drains, the body settles into the pose. This is what most people experience as 'the twist' and what most classes give you time for.

The next three minutes is the deeper release. The fascia around the spine, which only responds to sustained loading, begins to soften. The small intervertebral muscles, which the surface release does not reach, let go. The pose, at minute four or five, has a quality that the same pose at minute two does not have — a deeper sinking, a more thorough release, a sense that the spine has actually changed shape.

On the rhythm of doing this every evening

I do this in bed, before sleep, with the lights off. The bedroom door is closed. The phone is in the kitchen. I set a small timer next to the bed — five minutes per side, with a small chime to switch.

The pose is the last thing I do before the body scan that I have written about elsewhere. The twist softens the spine; the body scan settles the mind. The two together form a small evening sequence that takes about twenty minutes and that produces, almost without exception, a smooth slide into sleep.

After ten years of doing this, the body has come to expect it. On the rare evenings when I skip it — when I get into bed too late, or am traveling, or simply forget — the body notices. The next morning is slightly worse. The lower back is slightly tighter. The sleep was slightly less deep. The small daily ten minutes is doing more than I realised it was doing, and the absence of it is felt almost immediately.

Why this pose specifically

Because the supine twist addresses, in a single small pose, the largest fraction of the spine's daily accumulation of tension. There are other poses that do parts of what the supine twist does — a seated twist, a standing twist, a lying figure-four. None of them does as much in a single shape. The supine twist, held for the full duration, is the most efficient single thing you can do for an end-of-day spine.

If you have time for one pose in your evening practice, make it this one. Five minutes per side. In bed if you like, on a mat on the floor if you prefer. The pose is undemanding, the equipment is none, the time investment is ten minutes. The cumulative benefit, over months and years, is the difference between a spine that ages well and one that does not.