What was the original purpose of the g-suit?
Although the g-suit is now used in the military for fighter pilots and by NASA astronauts, it was originally invented for medical use. It was first used during surgery in 1903 by the inventor Dr. George Crile. The Origin of the Anti-G Suit – A Link Between Clinical Surgery and Aviation Medicine by Dr. Wilfrid H. Brook has more information on the history of the g-suit.