Muhammad Ali was diagnosed with Parkinson's Disease in 1984.
Ali was an American professional boxer and activist, he was diagnosed at just the age of 42. He suffered from this disease because of his boxing, according to his neurologists. But his family has suggests his disease was caused due to the exposure to pesticides he had experienced earlier in life.
In the following years after being diagnosed, Parkinson's began to take away Ali's motor skills and his ability to speak coherently.
Since there was no actual lab tests can diagnose. Blood tests can be done to check for thyroid hormone levels or liver damage. A CT scan or an MRI may be used to check for signs of a stroke or brain tumor. Also, a PET scan, can be detected of low levels of dopamine.
Sinemet Levodopa is the most commonly prescribed and most effective drug for controlling the symptoms of Parkinson's disease.
Muhammad Ali Parkinson Center
He died on June 3rd, 2016, the cause of death was septic shock after spending five days at an Arizona hospital for what started out as respiratory problems and gradually worsened. He died at the age of 74.