EVERYDAY SCIENCE

Detailed explanation-1: -Alzheimer’s disease causes the brain to shrink and brain cells to eventually die. Alzheimer’s disease is the most common cause of dementia-a gradual decline in memory, thinking, behavior and social skills. These changes affect a person’s ability to function.

Detailed explanation-2: -Alzheimer’s disrupts processes vital to neurons and their networks, including communication, metabolism, and repair. At first, Alzheimer’s disease typically destroys neurons and their connections in parts of the brain involved in memory, including the entorhinal cortex and hippocampus.

Detailed explanation-3: -Early-stage Alzheimer’s (mild) In the early stage of Alzheimer’s, a person may function independently. He or she may still drive, work and be part of social activities. Despite this, the person may feel as if he or she is having memory lapses, such as forgetting familiar words or the location of everyday objects.

Detailed explanation-4: -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-5: -People with dementia often experience memory loss. This is because dementia is caused by damage to the brain, and this damage can affect areas of the brain involved in creating and retrieving memories. For a person with dementia, memory problems will become more persistent and will begin to affect everyday life.