Today on Health & Longevity, Dr. John Westerdahl features guest, Jon LaLanne, son of fitness legend Jack LaLanne and Vice President of Jack LaLanne's Be Fit Enterprises. Jon LaLanne tells about what it was like growing up as the son of Jack LaLanne. He talks about his Dad's healthy lifestyle and shares stories about the Jack LaLanne Show. Jon gives his thoughts about physical fitness and good nutrition. Jon LaLanne is an avid surfer and tells about his surfing enterprise based in Hawaii.