Muhammad Ali’s health was complicated by Parkinson’s: All you need to know

  • AP
  • Updated: Jun 04, 2016 10:37 IST
Muhammad Ali (formerly Cassius Clay) trains at his Pennsylvanian mountain retreat in Owigsburg, Pennsylvania, for his fight against George Foreman in Zaire in 1947. (REUTERS)

Muhammad Ali, the magnificent heavyweight champion whose fast fists and irrepressible personality transcended sports and captivated the world, has died. He was 74.

Ali suffered for years from Parkinson’s disease, which ravaged his body but could never dim his larger-than-life presence.

Read: The name’s Ali, the greatest of them all

The boxing legends health was complicated by advanced Parkinson’s - a degenerative disease he’s lived with for three decades. Here are some questions and answers about Parkinson’s disease:

Q: What is Parkinson’s?

A: Parkinson’s is a neurologic disease that robs people of control over their movements. It typically starts with tremors, and is characterized by slow movement, a shuffling gait, stiff limbs, balance problems and slurred speech.

Read:‘The Greatest’ boxing legend Muhammad Ali dies at 74

Q: Who gets it?

A: About 1 million Americans are living with Parkinson’s, and an estimated 4 million to 5 million people worldwide, according to the National Parkinson Foundation. It usually appears after age 60, although sometimes it can develop before age 40.

In pics: ‘Sportsman of the 20th century’ Muhammad Ali dies at 74

Q: What causes it?

A: The exact cause isn’t known but Parkinson’s develops when cells that produce one of the brain’s chemical messengers, called dopamine, begin to deteriorate and die. Dopamine transports signals to parts of the brain that control movement. Parkinson’s symptoms appear after enough dopamine-producing cells die that there’s too little of this neurotransmitter in the brain.

Q: Is there a cure?

A: There is no cure but there are a range of treatments, from medications that affect dopamine levels to a surgically implanted tremor-blocking device. Patients also can benefit from physical and occupational therapy.

Q: What’s the prognosis?

A: Symptoms worsen over time, usually slowly. The severity of symptoms, and how quickly they progress, varies widely between patients. In advanced cases, people may be unable to walk or care for themselves. They also can suffer non-motor symptoms, including depression and memory and other cognitive dysfunction.

While Parkinson’s itself isn’t considered fatal, people can die from complications of the disease.

Q: What complications are of most concern?

A: Lung problems are a risk as muscle weakness impedes the ability to cough and to swallow. While any kind of pneumonia can occur, what’s called aspiration pneumonia - when bits of food or liquid land in the lungs instead of being swallowed properly - is the leading cause of death among Parkinson’s patients, said National Parkinson Foundation medical director Dr. Michael S. Okun.

The origin of Ali’s respiratory problems have not been disclosed, however, and may not be related to Parkinson’s.

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