12/06/2026
Types of Dementia: Understanding the Differences
Dementia is not one single disease. It is a general word used to describe changes in memory, thinking, behavior, communication, and daily functioning. Different conditions can cause dementia, and each type may affect a person in a slightly different way.
Alzheimer’s disease is the most common type of dementia. It often begins with memory problems, especially forgetting recent conversations, appointments, names, or events. Over time, the person may struggle with speaking, understanding, recognizing people, making decisions, and doing everyday tasks.
Vascular dementia happens when blood flow to the brain is reduced, often after a stroke or because of problems with blood vessels. It may affect planning, concentration, decision-making, movement, or mood. Sometimes the changes appear suddenly, and sometimes they progress gradually.
Lewy body dementia can affect memory, movement, sleep, alertness, and behavior. A person may have visual hallucinations, become very confused at certain times, move more slowly, have stiffness, or act out dreams while sleeping. Their level of alertness may also change from one moment to another.
Frontotemporal dementia often affects personality, behavior, emotions, judgment, or language before memory becomes very noticeable. A person may say or do things that seem out of character, lose interest in others, become impulsive, struggle to find words, or have difficulty understanding speech.
Understanding the type of dementia matters because it helps families know what to expect, how to respond, and what kind of support may be needed. But no matter the type, the person is still a person. They still need patience, dignity, safety, kindness, and love.
Simple reminder:
Dementia may have different names and different symptoms, but every person living with dementia deserves compassionate care.
