At 2:50 Bikkhu Bodhi advised a person with a spine condition to practise body sensations meditation. I have chronic headaches due to respiratory infections and also find this meditation beneficial due to the strength and largeness of the target sensations (body Earth element) compared with the breath (Air element). I'm referring to the scan technique beginning with areas where the skeleton contacts external surfaces, where the aim is to confine thoughts to the body so it becomes like a solid wooden door with a ball of string thrown at it having no effect. It would be of benefit to other invalids to hear a video devoted to this simple meditation on the body.