Professor TU Giay was born in 1921 in Ha Tay province, Vietnam. In 1945, as a young physician, he joined a movement for independence and liberty of the country. During wartime he worked in the Vietnamese Popular Army as a hygienist-nutritionist. Under his guidance the magazine Enjoy for life popularized healthy lifestyle, basic knowledge of hygiene, sound nutrition, control of malaria… the most important health problems of the time. He participated in the battle at Dien Bien Phu in 1954.