Immediately behind the thumbnail, on the side furthest from the fingers.

Exactly opposite acupoint 2, two thumb-widths from the outside of the wrist, in a straight line with the middle finger.

Measure two thumb-widths from the largest crease on the inside of the wrist. The point is between the tendons in the centre of the wrist.

This point is suitable for most upper-body problems. Press the thumb and index finger together to form a ridge at the upper edge of the thumb. The point is in the centre of the ridge, directly above the crease between the thumb and index finger.

On the largest crease of the inside of the wrist, in line with the thumb.