Pain Management as a specialty is concerned with the prevention, evaluation, diagnosis and treatment of painful disorders. The diagnosis relies on a thorough history and pain-oriented physical examination, including interpretation of diagnostic tests, and may require specialized diagnostic and therapeutic procedures.
The simple answer is that he was not always as disabled as he is today. Stephen Hawking was diagnosed with motor neurone disease in 1963. The doctors initially gave him two years to live but the disease's onset was not as rapid as they had expected. Two years later, he was still walking, albeit with a stick. Hawking was married to his first wife, Jane Wilde, on the 14th of July 1965.
The physicist and cosmologist was diagnosed with Lou Gehrig's disease when he was a 21-year-old student at Cambridge University. Most people die within a few years of the diagnosis, called motor neurone disease in the U.K. On Sunday, Hawking will turn 70. I don't know of anyone who's survived this long, said Ammar Al-Chalabi, director of the Motor Neurone Disease Care and Research Centre at King's College London. He does not treat Hawking and described his longevity as extraordinary..