Parkinson’s disease
is a brain disorder resulting in the shaking of the limbs and muscular rigidity
leading to slow body movement, poor coordination, and lack of balance. People
who suffer from the illness have difficulties in walking, writing, and speaking.
Parkinson’s
disease is caused by the degeneration and death of neurons that are involved
in the production of dopamine, a chemical which plays a key role in brain function
and human behaviour. While the cause of dopamine deficiency is unknown, research
suggests that genetics, harmful pesticides, and free radicals (unstable molecules
that damage neurons) are factors. A drug called levodopa (L-dopa) is used as
treatment for Parkinson’s disease to minimize the symptoms.
