How did the french fashion Christian Dior die at such an early age?

I never found that information. Does anyone know?How did the french fashion Christian Dior die at such an early age?
Christian Dior (1905-1957), who had originally studied to become a diplomat, briefly worked for the designers Robert Piguets (1901-1953) in 1938 and Lucien Lelong (1889-1958) in 1942 before founding his own couture house in 1946. At the house of Lelong he met Pierre Balmain, who was to open his own couture house one year before Dior in 1945. Christian Dior rose to fame by creating the 'New Look', which caused furore and revolutionised fashion. It was American Vogue that originally coined the term 'New Look' when Dior presented his first collection on 12 February 1947. Christian Dior's 'New Look' was to solidly restore Paris after World War II as the sovereign city of fashion. For years women had dreamt of wearing more feminine dresses and Dior introduced petticoats, small waists and dresses that went down to the ankle. A 'Dior Dress'- a dream countless women in the post-war period had - became a symbol of everything that was desirable and yet out of reach for the ordinary person.


Christian Dior attracted many young talents such as Pierre Cardin, Jean-Louis Scherrer and Yves Saint Laurent who were all later to open their own couture houses. Founded in 1950, the futuristic visions of the House of Cardin were a 'style de force' in the 1960s and 1970s. Both Scherrer and Yves Saint Laurent were to found their couture houses in 1962. When Dior suddenly died at the height of his fame of a heart attack, he is succeeded in 1957 by a very young Yves Saint Laurent, aged 21.


The house of Dior has been situated since 1946 in a small town palace at No. 30 avenue Montaigne.