What a great article, Julianne. As a (now retired) acupuncturist I use, in very cold weather , a slow burning moxa box (bit like a heat pad) but make sure I position it over the acupuncture point Du.4, which is best for heating the whole body. Du.4 is on the spine roughly in line with the waist, so to be in the safe side, tuck the heat pack lengthways into the waistband of jeans/trousers. A🙏💚