Understanding and Managing Dementia
Recent studies show that 1 in 10 people over 65 and 1 in 2 over 85 will develop dementia. As people age, they are more likely to forget things - this is age-related memory loss. Unlike dementia, age-related memory loss generally does not significantly impact daily life and activities.
What is Dementia?
Dementia is a general term describing the loss of memory, language, problem-solving, and other thinking abilities. There are approximately 400 types of dementia, all of which are degenerative and progressive brain diseases.
Dementia Symptoms may include loss of short-term memory, getting lost in familiar locations, repeating questions, impulsive behavior, lack of interest in others, loss of interest in activities, using unusual words for familiar objects, and new difficulty in managing finances and other household tasks.
Dementia Behaviors: Someone with dementia may exhibit changes in personality or behavior, such as irritability, aggressiveness, hallucinations, wandering, eating difficulties, and changes in sleep. Medications may help, but your loved one may often act this way because they cannot express themselves and find the situation stressful.
Diagnosing Dementia: Although dementia cannot be cured, there are benefits to diagnosing it early, such as addressing symptoms and planning for the future. Start by speaking with your loved one’s physician. Infections, medications, and health conditions can cause forgetfulness or change behavior and can be treated. A physician may review a person's medical and family history, perform a physical examination, order imaging and lab work, and refer to a neurologist for further cognitive and neurological tests.
Common Dementias
Alzheimer's Disease is the most common dementia and affects the parts of the brain that control thought, memory, and language. Beginning with mild memory loss, it can eventually lead to the inability to carry out simple tasks. Alzheimer’s is identified by protein plaques and tangles in the brain.
Vascular Dementia is caused by decreased blood flow to the brain affecting memory, thinking, or behavior. Symptoms may develop gradually or suddenly after a stroke or major surgery. There may be short periods of improvement.
Lewy Body Dementia leads to a decline in thinking, reasoning, and movement. Symptoms may include spontaneous changes in attention and alertness, recurrent visual hallucinations, sleep behavior disorder, slow movements, tremors, or rigidity.
Frontotemporal Dementia, a group of disorders that affect the part of the brain associated with personality, behavior, and language, is rare and occurs at a younger age than other dementias. Some people may have dramatic changes in their personalities.
Korsakoff Syndrome is a rare memory disorder due to a lack of thiamine (vitamin B1) and is associated with alcoholism and malnutrition. Symptoms include mental confusion, vision problems, coma, hypothermia, low blood pressure, and lack of muscle coordination.
Reducing the Risk of Dementia
There is no cure, but the risk of cognitive decline can be reduced by staying mentally active, maintaining social connections, exercising, managing health conditions, and eating a healthy diet. Studies have shown the benefits of Vitamin D, walking, controlling blood pressure, and following Mediterranean or DASH diets.
Dementia Medications
Aricept®, Exelon®, Razadyne®, Namenda®, and Namzeric® are several of the drugs that may temporarily slow cognitive decline by improving communication between nerve cells and helping the brain to process information, whereas newer medications such as Leqembi® are designed to slow cognitive decline in the early stages of Alzheimer’s by targeting the amyloid-beta plaques in the brain.