I've previously written about singing for health, complementary therapies, diet and exercise - issues close to my heart that I hope you've found useful. Following on from this I've recently become aware of a few relevant websites that may be helpful -
arthritisresearchuk.org - for a brief overview of treating pain using complementary therapies.
laughteryoga.co.uk - to find out more about the health benefits of combining laughter with yoga.
healthqigong.org.uk - useful if you want to find a qigong instructor in your area.
choirs.org.uk - to find a local singing group in your area.
Hope this helps.