For the past 34 years, best-selling author Cal Samra, age 87, has been the editor of a national humor newsletter called The Joyful Noiseletter directed mainly to churches and health professionals. Health, physical fitness, and longevity have been the author's longstanding interests during his years as an Associated Press and newspaper reporter, and as the lay executive director of the Huxley Institute for Biosocial Research, a medical research foundation...