The story at the link explores a multitude of uses for the mushroom, I'm personally involved in the medicinal use of the strain Reishi, (Ree-she).
Someone very close to me has been enduring chemotherapy for 25 months for Pancreatic Cancer, and there was no change in the mass of the Tumor for 21 months. This mushroom extract was begun in February of 2013, and the tumor shrunk by 80%. The chemo cocktail was unchanged in that time.
It seems to me that big pharma and the medical community manage disease and treat symptoms, rather than seek a cure.
I'm in my seventh decade on Earth. I know things.