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Dementia is the name for a group of brain conditions that make it harder to remember, reason, and communicate. The most common form of dementia is Alzheimer disease. Other types include vascular dementia, frontotemporal dementia, and Lewy body dementia. Years ago, dementia was often called “senility.” It was even thought to be a normal part of aging. We now know that it’s not normal. It’s caused by ongoing damage to cells in the brain.
Symptoms differ depending on which parts of the brain are affected and the stage of the disease. The most common symptoms include:
Memory loss, including trouble with directions and familiar tasks
Language problems, such as trouble getting words out or understanding what is said
Difficulty with planning, organizing, concentration, and judgment. This includes people not being able to recognize their own symptoms.
Changes in behavior and personality
The brain controls all the workings of the mind and body. Some parts of the brain control memory and language. Other parts control movement and coordination. With dementia, nerve cells in the brain are gradually damaged or destroyed. Why this happens is not yet clear. But over time, parts of the brain begin to atrophy (shrink). Brain atrophy often starts in the part of the brain that controls memory, reasoning, and personality. Other parts of the brain may not be affected until much later in the illness.
Dementia is a progressive disease. This means it gets worse over time. Symptoms differ for each person, but there are 3 basic stages. Each may last from months to years:
In the early stage, a person may seem forgetful, confused, or have changes in behavior. However, he or she may still be able to handle most tasks without help.
In the middle stage, more and more help is needed with daily tasks. A person may have trouble recognizing friends and family members, wander, or get lost in familiar places. He or she may also become restless or moody.
In the late stage, Alzheimer’s can cause severe problems with memory, judgment, and other skills. Help is needed with nearly every aspect of daily life.
At present, there’s no cure for dementia. But with proper care, many people can live comfortably for years:
Medicines are a key part of treatment. Some types can help slow the progression of symptoms, such as memory loss. Others can help ease mood, behavior, and sleep problems. These medicines work for some people but not all.
Activity and exercise are good for body and mind. They may even help slow the progression of the disease. Simple, repetitive activities are good choices.
Regular healthcare provider visits help keep track of symptoms and overall health.
Sleep-wake cycle can be mixed up in patients with dementia. They may function better being up at nighttime and sleeping during the daytime.
Social interactions are important to maintain.
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