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.
Beta Amyloid Plaques Found in the Brains of Young Adults. A new study lead by Changiz Geula, a research professor at the Northwestern University Feinberg School of Medicine in Chicago, found evidence of Alzheimerâs disease in the brains of deceased adults as young as 20 years old.