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Most Common Types of Dementia

Common dementia

Getting a call that a loved one has been diagnosed with dementia can be difficult and confusing. What does it mean? How will this affect their life? How can I help them? A great way to start is by understanding the diagnosis itself. For starters, did you know dementia isn’t a disease? Dementia is a syndrome, unlike Alzheimer’s which is classified as a disease. A syndrome is when a group of symptoms doesn’t lead to a specific diagnosis. It’s the umbrella term used to describe symptoms that impact memory.

There are also reversible dementia, where negative drug interaction or vitamin deficiency cause the symptoms but can be reversed with the right treatment. A great example of this is dehydration. Dehydration symptoms in seniors can mimic the symptoms of dementia, like confusion. Not only is this easy to reverse with proper hydration, it’s easy to prevent.

Then there are the non-reversible dementia. These are the ones that have the greatest impact. It’s important to know the difference between them, and how they affect each person. Because these dementia all have their own set of symptoms, staying educated about the different types of dementia can help us recognize and treat the symptoms before they get worse.

9 dementia diagnoses

Alzheimer’s

Currently, Alzheimer’s disease is degenerative and incurable. However, there are new scientific discoveries made frequently about the disease and medical interventions it responds to. The average life expectancy following an Alzheimer’s diagnosis is eight to 10 years. However, everyone diagnosis is unique.  With recent additions to the National Institutes of Health’s budget for 2019, we can hold out hope that more positive discoveries will be made.

NIHFundingFY2019

Vascular Dementia

The second most common dementia is vascular dementia. Symptoms occur from blood vessel blockage or damage, leading to strokes or bleeding in the brain. These symptoms can occur suddenly and include impaired judgment, difficulty concentrating, and problems with planning, organizing or making decisions.

Lewy Body Dementia

Lewy body Dementia is a progressive brain disorder in which abnormal deposits of a protein called alpha-synuclein build up in areas of the brain that regulate behavior, cognition, and movement. These deposits interrupt chemical messages in the brain and cause memory loss and disorientation. LBD also affects body functions such as blood pressure control, temperature regulation, and bladder and bowel functions. As it progresses, people diagnosed with LBD can experience visual hallucinations or act out their dreams.

Mixed Dementia

Mixed dementia combines two or more disorders, one being dementia, with the most common combination being Alzheimer’s and vascular dementia. The Jersey Alzheimer’s Association reported that up to 45 percent of people with dementia have signs of both Alzheimer’s disease and vascular dementia.

Frontotemporal Dementia

Frontotemporal dementia was once known as Pick’s disease, several disorders that affect the frontal and temporal lobes of the brain. The symptoms of frontotemporal dementia depend on the areas of the brain affected: behavioral or language. Behavioral symptoms like inappropriate actions, lack of inhibition, neglect of personal hygiene and compulsive behavior are most common. Language related symptoms include difficulty speaking or understanding, language recall problems, and difficulty with social interactions.

Wernicke-Korsakoff Syndrome

Most commonly caused by alcohol abuse, Wernicke-Korsakoff syndrome is a chronic memory disorder caused by severe deficiency of thiamine (vitamin B-1). This deficiency causes bleeding in the lower section of the brain, affecting muscle control, the ability to remember things, and trouble learning and processing information. Wernicke-Korsakoff syndrome’s not technically a type of dementia but has been categorized with other dementia because of shared symptoms.

Parkinson’s Disease

While Parkinson’s disease isn’t a form of dementia, nearly 1 in 5 people diagnosed with Parkinson’s will develop dementia. Look for early warning signs like difficulty understanding visual information or remembering how to do simple daily tasks. As the disease advances, an individual with Parkinson’s could become more depressed, paranoid, or have trouble speaking or recalling words during conversation.

Huntington’s Disease

Like people living with Parkinson’s disease, individuals with Huntington’s disease often develop dementia. A defective gene causes brain cells to break down prematurely, which causes dementia symptoms including difficulty thinking, focusing and reasoning, or learning new things. Movement can also become impaired, making essential activities like walking, talking and swallowing challenging.

Creutzfeldt-Jakob Disease

One of the rarest forms of dementia, Creutzefeldt-Jakob Disease, occurs in only one in 1 million people each year. The brain is infected by an abnormally shaped protein called a prion. While the symptoms mimic those of other types of dementia (confusion, memory loss, agitation, depression) those diagnosed with the disease also experience muscle stiffness and twitching. Creutzfeldt-Jakob disease progresses rapidly.

Aegis Living’s nationally recognized memory care program Life’s NeighborhoodTM, improves the quality of life and increases enjoyment for people living with memory loss. If you are interested in learning more about this program, contact your nearest Aegis Livingcommunity.

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Transitional Care is Aegis Living’s bridge for early memory loss—made for people who are still social and independent but benefit from structure, reminders, and gentle support. Residents remain in assisted living with full access to amenities and friendships, while dementia‑trained team members are available 24/7 for cueing, medication management, wayfinding, and compassionate redirection when confusion arises. Onsite nurses monitor health and adjust a personalized care plan as needs evolve, and discreet safety technology like motion sensors, medical‑alert pendants, and a visitor check‑in system, adds reassurance without sacrificing freedom. Nutrition and hydration stay on track with chef‑prepared meals, seasonal menus, and all‑day options, and days are filled with meaningful activities that build confidence and connection. Couples can stay together even with different care needs. If symptoms progress, a seamless transition to our secured Life’s Neighborhood Memory Care is available with the same trusted team. Choose Transitional Care when your loved one is missing medications, repeating questions, or feeling anxious alone but does not yet require a secured Memory Care setting—it’s the right support, at the right time.

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Memory Care is specialized, secure support for people living with Alzheimer’s or other dementias who benefit from a calm, structured environment and round‑the‑clock expertise. At Aegis Living, that care happens in Life’s Neighborhood—an intimate, thoughtfully designed setting where 24/7 dementia‑trained caregivers and a nursing team on site seven days a week deliver personalized help with daily living, medication management, and mobility (including Hoyer lifts and two‑person transfers), while gently redirecting agitation and confusion. Days are purpose‑filled with science‑based cognitive programming, certified music therapy, and social activities; chef‑prepared meals are easy to enjoy and dining spaces and cues are designed for memory support. Discreet safety features like secured entrances, emergency pendants with fall detection, and optional motion sensors, prevent wandering and bring peace of mind, and visiting physicians and wellness professionals reduce trips off‑site. Families receive education and ongoing support. If your loved one is unsafe alone, missing medications, wandering, needs frequent cueing or hands‑on help with bathing or dressing, or thrives with a predictable routine, Memory Care offers the right level of care. For milder needs, our transitional Assisted Living can be a first step; for advancing symptoms, secured Memory Care provides the specialized, heartfelt support to help them feel calm, connected, and at home.

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Assisted Living is ideal when you—or a loved one—want to stay independent but need daily help to live safely and well. It combines a private apartment with 24/7 caregivers who provide personalized support with activities of daily living (bathing, dressing, medications, mobility, including two‑person transfers and Hoyer lifts when needed). A nursing team on site seven days a week builds a tailored care plan, with visiting physicians and onsite physical, occupational, and speech therapy available for added peace of mind. Meanwhile, we handle the details like chef‑prepared, dietitian‑designed all‑day dining, housekeeping, laundry, transportation, and concierge services, so residents can focus on community and purpose in beautifully designed spaces with fitness classes, clubs, and daily activities. Care scales up or down as needs change (so you only pay for the support you use). If you don’t require the constant medical care of a nursing home but want more help than independent living provides, Assisted Living delivers the care, comfort, and community to help you thrive.
Light Assisted Living is for adults who are largely independent and want the ease of maintenance‑free living with a trusted safety net close by. You’ll keep your own routine in a private apartment while we handle the hassle like chef‑prepared, dietitian‑designed all‑day dining, weekly housekeeping and laundry, concierge help, and scheduled transportation to appointments and outings. Our on‑site team is available 24/7 for occasional support—think medication reminders, a steady arm for bathing or dressing, or short‑term help after an illness—without the intensity of higher‑level care. Stay active with a full calendar of fitness, arts, clubs, and curated excursions; stay well with visiting physicians and optional physical, occupational, and speech therapy through our EmpowerMe Wellness partnership. Emergency call systems, elevators, and discreet mobility support add peace of mind. It’s the right fit if you don’t need Memory Care or frequent hands‑on assistance, but want community, convenience, and the assurance that more support can scale up if your needs change. Couples with different care needs can remain together with personalized plans.