AP PSYCHOLOGY

Detailed explanation-1: -In addition, highly intelligent people have been found, on average, to show clinical signs of Alzheimer’s later than the general population. Once they do, they decline much faster. Thought to reflect their greater mental reserves, this different pattern may call for a different approach to diagnosis.

Detailed explanation-2: -These plaques and tangles in the brain are still considered some of the main features of Alzheimer’s disease. Another feature is the loss of connections between neurons in the brain.

Detailed explanation-3: -Alzheimer’s disease is thought to be caused by the abnormal build-up of proteins in and around brain cells. One of the proteins involved is called amyloid, deposits of which form plaques around brain cells. The other protein is called tau, deposits of which form tangles within brain cells.

Detailed explanation-4: -A 2019 study found that among people with Alzheimer’s, those with more neurogenesis-more new brain cells being formed-had less cognitive impairment. These findings came with an exciting realization: Increasing the brain’s ability to regenerate brain cells could stave off cognitive decline and dementia.