First twenty years of life Francois Henry LaLanne was born in San Francisco, the son of French immigrants. In his own words, a child was too addicted to junk food. It was also very fighter, to the point that once ran to his brother with a hatchet when he was 15. LaLanne heard a talk on nutrition by Paul Bragg that greatly influenced the boy, who was concerned about his health. La Lanne decided to switch to diet and exercise. He studied human anatomy, and decided to go into bodybuilding and weightlifting, which by the mid-1930s was not very common.