Comedy and chronic pain might not seem to have much in common, but on today’s program, they do. UC Davis Continuing Lecturer Karma Waltonen teaches seminars on writing & performing stand-up comedy, among other subjects, and on Jan. 31 she’ll present her one-woman show “Chronic Pain: A Comedy,” at the UC Davis Comprehensive Cancer Center in Sacramento. Waltonen has wonderfully eclectic interests – her expertise ranges from The Simpsons to Margaret Atwood – and her sense of humor and comic timing, backed by her clear respect for the serious aspects of her subject, make this an engaging interview.