Finding the right medicine for Alzheimer’s disease is often a process of trial and error. These medicines are commonly used because emotional and behavioral symptoms affect almost everyone with Alzheimer’s disease during the course of illness. They also hope extracellular vesicles could eventually be developed into a simple liquid biopsy that helps diagnose Alzheimer’s disease, determine its stage, and identify disease subtypes. The research shows that patient-derived brain organoids may help explain why some people respond to medicines while others do not. If you care about Alzheimer’s disease, please read studies about the protective power of dietary antioxidants against Alzheimer’s, and eating habits linked to higher Alzheimer’s risk.