Regarding silk underwear, I bought mine from -www.silkyshop.com and was happy with the service and the quality. Interestingly enough, I was wearing them when I felt a headache coming on a couple of days ago. When I turned on the light in the bathroom (incandescent) it exploded with a loud bang and a flash. It was so loud, and frightened me so much that I screamed. After that, the headache got worse, so I wrapped a silk scarf around my head. Presto! Bingo! The headache vanished!