With a friendly and enthusiastic tone, Gundry explains his view that eating a healthy diet can turn off genes in the human body that lead to weight gain and chronic disease. Gundry's rather complex three-phase diet plan focuses on reducing or eliminating grains and sugar, in favor of lean protein and large amounts of vegetables. The initial phases of Gundry's eating plan bear some similarities to the Paleolithic or caveman diet, as presented in books such as Ray Audette's NeanderThin or Loren Cordain's The Paleo Diet.
John Glenn: First American to Orbit the Earth. On the morning of February 20, 1962, millions of Americans collectively held their breath as the worldâs newest pioneer swept across the threshold of one of manâs last frontiers.
NASA continued to trail the Soviets in space achievements until the late 1960s, when NASAâs Apollo program put the first men on the moon and safely returned them to Earth. In 1998, 36 years after his first space flight, John Glenn traveled into space again. Glenn, then 77 years old, was part of the Space Shuttle Discovery crew, whose 9-day research mission launched on October 29, 1998. Among the crewâs investigations was a study of space flight and the aging process.