Parkinson's disease is a condition in which parts of the brain become progressively damaged over many years.
The 3 main symptoms of Parkinson's disease are:
- involuntary shaking of particular parts of the body (tremor)
- slow movement
- stiff and inflexible muscles
A person with Parkinson's disease can also experience a wide range of other physical and psychological symptoms.
- depression and anxiety
- balance problems (this may increase the chances of a fall)
- loss of sense of smell (anosmia)
- problems sleeping (insomnia)
- memory problems
It's thought around 1 in 500 people are affected by Parkinson's disease. Most people with Parkinson's start to develop symptoms when they're over 50, although around 1 in 20 people with the condition first experience symptoms when they're under 40. Men are slightly more likely to get Parkinson's disease than women.