22 October

It’s only when you watch people walking from above that I think you can see that walking is actually a rotational thing. Our bodies rotate alternately clockwise and anti-clockwise, for each gait cycle or stride. (It’s called nutation, how most living things move - in helixes.) To achieve this the muscles of your body are arranged in ascending and descending helixes which wind and unwind. Because we’re usually left or right-handed and footed, one of those directions gets favoured. That’s when things can go wrong, often in the lower back, and you end up preferentially twisted one way even when you stop moving. You then need to learn to literally ‘unwind’. More on that some other time.