Degenerative brain disease and the most common form of dementia.

Alzheimer's health problem is the foremost typical rationalization for insanity and together the foremost effective understood. It's thought to be caused by the formation of abnormal deposits of supermolecule among the brain. These area units stated as plaques and tangles, which they area unit created of two key proteins: amyloid and letter of the alphabet.

Amyloid and letter of the alphabet area unit Gift in healthy brains, but in presenile dementia malady they perform abnormally. Amyloid forms plaques outside cells and letters of the alphabet form tangles among them. These plaques and tangles injury the nerve cells, inflicting them to die. once many cells die, this causes the brain to shrink.

Alzheimer's Society is the leading support and analysis charity for folk with insanity, their families, and carers.

The term dementia is used to clarify the symptoms that occur once the brain is ill with specific diseases and conditions. Symptoms of insanity embody loss of memory, confusion, and problems with speech and understanding.