Peter Tork is an inspiration in several arenas. He is open and vocal about his recoveries from Alcoholism and Cancer.
According to the interview, Peter says is a cause "Near and dear to my heart, and near and dear to my tongue too!" In March, 2009, he was diagnosed with Adenoid Cystic Carcinoma on the lower part of his tongue. He had a lump the size of a plum on the lower part of his tongue, it was removed but it was caught early enough for him to be declared cancer free. He is now singing better than ever, but will admit that he hears a slurrig in his "s" sound.
He appeared on a radio interview in 2012-link talking about National Head and Neck Cancer Awareness Week, happening annually in April.