Michio told a friend of mine with Lyme to avoid all yin "during the Ides of March!" Basically, avoid all yin from about March 15 to April 15. She was so determined that she did it for about 3 months during that time. She has never had a recurrence, nor a problem, and considers herself quite cured. By the way, she is an awesome macro lady, keeping her diet very simple, but with lots of variety.