Yuri Gagarin was a Soviet pilot and cosmonaut who was the first human to journey into outer space, when his Vostok spacecraft completed an orbit of the Earth on April 12th, 1961.
Gagarin was one of the 20 cosmonauts selected by Korolev for the Soviet space program.
Gagarin once said about those who were not meant to be sent to space, “There is one thing that unites all of them – it is their desire to become good pilots, cosmonauts. Space is calling for them. And it always will. Like an eternal call”.
Gagarin and other prospective cosmonauts were subjected to experiments designed to test physical and psychological endurance and carried out by a medical committee.
Gagarin had good eyesight and a strong and healthy heart and lungs. He successfully passed all vestibular experiments.