Birch Polypore has been used for at least 5000 years as a medicine. German hikers in 1991 stumbled onto a frozen, mummified man, dated at 5000 years old, he was wearing a birch polypore around his neck. examination of this man identified a type of gastrointestinal bacteria, that can be treated with birch polypore. the polypore has great anti-inflammatory properties, is proven to promote gut health, and offers Neuroprotection against trophic stress. This fungus also produces specific acids similar to interferon, which is a strong antiviral medicine.