[M.D. Holloway]

While this may seem insignificant to some, please understand that what this team found is very remarkable. For those who do not think that there is a strong symbiotic relationship with other organisms in your body, think again. Someday we may discover that many illnesses (physical and mental) we suffer may have to do with the imbalance / absence / presence of things we don't look for.

Lichens are three organisms discovery - Business Insider