Here's a great story from the Tulsa World:
Trudy Runnels is a 44-year-old mother from Waxahachie, Texas. She has a rare form of metastatic breast cancer (triple- negative). It is not funny. Trudy is.
On a recent afternoon, at Cancer Treatment Centers of America, Runnels and a handful of other cancer patients gathered in a group therapy session. Together, their laughter became medicine.
After all, a funny story can do the most amazing things for a cancer patient, according to Dr. Gerald Ellison, a psychologist who leads the Centers' weekly humor therapy class.
"Laughter stimulates the immune system to produce cells that are very powerful in fighting cancer," Ellison explained. " There are many medical benefits to laughter." Read more here.