Parkinson’s disease is a progressive disorder of the nervous system that affects the movement. It develops gradually, sometimes starting with a barely noticeable tremor in just one hand. But while a tremor may be the most well-known sign of Parkinson's disease, the disorder also commonly causes stiffness or slowing of movement.
Parkinson’s disease become worst as your condition progress over time, at the early stage of the disorder your face may show no expression, the way you walk changes and the most recognisable is your speech it become slurred and soft. The muscles of a person with Parkinson's become weaker and the individual may assume an unusual posture.
Parkinson's disease belongs to a group of conditions called movement disorders. Movement disorders describe a variety of abnormal body movements that have a neurological basis, and include such conditions as cerebral palsy, ataxia, and Tourette syndrome.
A male has a 50% higher risk of developing Parkinson's disease than a female.
In the majority of cases, symptoms start to appear after the age of 50. However, in about 4% to 5% of cases the sufferer is younger than 40 years. When signs and symptoms develop in an individual aged between 21 and 40 years, it is known as Young-onset Parkinson's disease.
Apart from tremor and slow movements, the patient may also have a fixed, inexpressive face - this is because of poorer control over facial muscle coordination and movement.
As a significant number of elderly patients with early Parkinson's disease symptoms assume that their traits may form part of normal aging and do not seek medical help, obtaining accurate statistics is probably impossible. There are also several different conditions which sometimes have comparable signs and symptoms to Parkinson's, such as drug-induced Parkinsonism, head trauma, encephalitis, stroke, Lewy body dementia, corticobasal degeneration, multiple system atrophy, and progressive supranuclear pasly`.