The link Jenny mentioned in
this post, and upon which the rest of her post is based, is no longer valid. Instead, you can find the original article
here. The textual content is the same as in Jenny's post, but the original article has a lot of useful pictures and diagrams that help to make everything clearer.
If you Google "chronic fatigue syndrome" and "Giovanni Maciocia" together, you will find a number of other interesting links, including other articles, as well as Chinese herbal medicine for sale that appears to have been developed by Giovanni Maciocia specifically for the treatment of what he describes as chronic fatigue syndrome.