Visceral pain is often described as generalized aching or squeezing. It is caused by compression in and around the organs, or by stretching of the abdominal cavity. Sometimes visceral pain may radiate to other areas in the body, making it even harder to pinpoint its exact location.
Data from the largest analysis to date of amyloid plaques showed they can appear 20 or 30 years before dementia symptoms.
Amyloid plaques are sticky buildup which accumulates outside nerve cells, or neurons. Amyloid is a protein that is normally found throughout the body. For reasons as yet unknown, in AD, the protein divides improperly, creating a form called beta amyloid which is toxic to neurons in the brain.s a result, the beta amyloid accumulates as plaques in the brain. Molecules called free radicals may also play a role. Normally, free radicals play important roles in the body, such as helping the immune system fight off disease.