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.
In 1957, he made the first nonstop supersonic flight across the United States, flying from Los Angeles to New York in three hours and 23 minutes. Glenn was preceded in space by two Americans, Alan B. Shepard Jr. and Virgil I. âGusâ Grissom, and two Soviets, Yuri A. Gagarin and Gherman S. Titov. In April 1961, Gagarin was the first man in space, and his spacecraft Vostok 1 made a full orbit before returning to Earth. Less than one month later, Shepard was launched into space aboard Freedom 7 on a suborbital flight. In July, Grissom made another brief suborbital flight aboard Liberty Bell 7.