Parkinson’s is caused by a loss of nerve cells in a specific part of the brain.
These nerve cells are used to help send messages between the brain and the nervous system.
Parkinson’s disease symptoms tend to develop gradually, and only appear as mild at first.
You may be at risk of the condition if you start to notice changes to your speech.
“Speech and swallowing problems can significantly impact the lives of people with Parkinson’s and their care partners,” said the charity.
“Many people with Parkinson’s speak quietly and in one tone, they don’t convey much emotion.
“Sometimes speech sounds breathy or hoarse. People with Parkinson’s might slur words, mumble or trail off at the end of a sentence.
“Most people talk slowly, but some speak rapidly, even stuttering or stammering.”
Common signs of Parkinson’s disease include tremors, slow movement, and muscle stiffness.
The muscle stiffness makes facial expressions more difficult, said the charity.
Tremors usually start in the hand or the arm, and are more likely to occur when the arm is relaxed.
There are about 145,000 people in the UK with Parkinson’s disease, and it’s the fastest growing neurological condition in the world.