Q.Write briefly on Alzheimer's disease.

Alzheimer's disease is a progressive neurodegenerative disorder of the brain, commonly seen in the elderly, characterized by degeneration of neurons (especially in the cerebral cortex and hippocampus), leading to prog...

Alzheimer's is a progressive age-related neurodegenerative disease causing worsening memory loss and cognitive decline.

Alzheimer's disease is a chronic, progressive neurodegenerative disorder, most common among elderly individuals, and is the leading cause of dementia. It is characterized pathologically by the degeneration and death of neurons, particularly in brain regions involved in memory and cognition (such as the hippocampus and cerebral cortex), associated with the abnormal accumulation of amyloid plaques and neurofibrillary tangles (of tau protein) in brain tissue, and by reduced levels of certain neurotransmitters such as acetylcholine. Clinically, the disease presents initially with mild, gradually worsening memory loss (especially of recent events), progressing over time to confusion, disorientation, impaired judgement and reasoning, language and communication difficulties, mood/personality changes, and eventually severe cognitive decline that interferes with the ability to …