Hi,
Parkinson's disease is a chronic, progressive neurodegenerative movement disorder. Tremors, rigidity, slow movement (bradykinesia), poor balance, and difficulty walking (called parkinsonian gait) are characteristic primary symptoms of Parkinson's disease.There is no particular age for the occurance of the disease . There have been cases diagnosed with the disease at the age of 18. Please consult a neurologist for further details .