Final answer:
Parkinson's disease is a neurodegenerative disorder that affects movement. L-DOPA is a commonly prescribed drug that can help compensate for the loss of dopaminergic neurons.
Step-by-step explanation:
Parkinson's disease is a neurodegenerative disorder that affects the muscular system and movement. The disease is characterized by the death of neurons in the midbrain, leading to symptoms such as muscle tremors, rigidity, slowness of movement, and postural instability. L-DOPA, a precursor to dopamine, is a commonly prescribed drug that can help compensate for the loss of dopaminergic neurons. However, over time, patients may become less responsive to L-DOPA treatment.