Alzheimer's disease is a
progressive neurodegenerative disorder affecting memory and cognitive function,
characterized by beta-amyloid plaques and tau tangles in the brain. Parkinson's
disease, a movement disorder, results from the loss of dopamine-producing
neurons, leading to tremors, bradykinesia, and rigidity, with alpha-synuclein
protein accumulation in the brain. Both conditions lack cures; Alzheimer's
manifests as memory loss and personality changes, while Parkinson's exhibits motor
symptoms. Early diagnosis and symptom management are crucial for enhancing quality
of life, as researchers strive to understand the complex genetic and
environmental factors contributing to these debilitating neurological diseases.