Is an explanation for alzheimer's disease that suggests that changes in aging brain cells may trigger an autoimmune response that leads to the disease.

Autoimmune theory

Explanation:

Alzheimer's disease  is the most common type of neurocognitive disorder, which usually occurs after the age of sixty-five and is characterized mainly by memory impairment.

The autoimmune theory suggests that the immune system is prearranged so that it becomes unable to identify the body's proteins from foreign ones. As a result, the immune system attacks its own cells.

when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave