Paul believes that habitats and humans share immune systems and that mushroom mycelia are the cellular bridges connecting the two.
Going through the different species he has researched, Paul shows how one type, the Agarikon, has antibacterial properties. It is the oldest living mushroom in the world, reaching 100.
The Turkey Tail mushroom saved Paul's mother from cancer. At 84 she was diagnosed with breast cancer. Her tumour was 5cm large and had spread to her liver and sternum. Being too elderly for most treatments, her doctor suggested she tried Turkey Tail mushrooms which were being trialled. Ironically, Paul was growing them. His mother now has no signs of cancer.