9. Trouble sleeping.
This condition can as well be described as rapid-eye movement disorder, in which patients act out in their dreams when sleeping. They could shout, grind their teeth of kick or attack their bedmates. It has been proved that people with such condition develop Parkinson’s disease later. Other sleeping disorder often associated with Parkinson’s disease is restless leg syndrome. This is where an individual feels sensation in the legs making them keep on moving the legs. Not all patients with this rare condition develop the disease but a good number of them proved this to be a sign.