Cardiovascular disease in air travellers.

There has been a great increase in civil aviation in the post-war years. In 1966, more than a million passengers a month passed through London Airport. Flying has become so safe and convenient that many disabled people elect to travel by this means. In fact, as many as 5 per cent of passengers on routine scheduled services are suffering from some form of disability, though less than 1 per cent are self-declared invalids.