What is Alzheimer’s Disease?
Alzheimer’s disease is a progressive disease that destroys memory and other important mental functions. At first, someone with Alzheimer’s disease may notice mild confusion and difficulty remembering. Eventually, people with the disease may even forget important people in their lives and undergo dramatic personality changes.
Alzheimer’s disease is the most common cause of dementia — a group of brain disorders that cause the loss of intellectual and social skills. In Alzheimer’s disease, the brain cells degenerate and die, causing a steady decline in memory and mental function.
Current Alzheimer’s disease medications and management strategies may temporarily improve symptoms. This can sometimes help people with Alzheimer’s disease maximize function and maintain independence for a little while longer. But because there’s no cure for Alzheimer’s disease, it’s important to seek supportive services and tap into your support network as early as possible.
How common is Alzheimer’s Disease?
Alzheimer’s disease is extremely common. It can be managed by reducing your risk factors. Please discuss with your doctor for further information.
What are the symptoms of Alzheimer’s?
At first, increasing forgetfulness or mild confusion may be the only symptoms of Alzheimer’s disease that you notice. But over time, the disease robs you of more of your memory, especially recent memories. The rate at which symptoms worsen varies from person to person. Brain changes associated with Alzheimer’s disease lead to growing trouble with:
Everyone has occasional memory lapses. But the memory loss associated with Alzheimer’s disease persists and worsens, affecting your ability to function at work and at home. People with Alzheimer’s may:
- Repeat statements and questions over and over, not realizing that they’ve asked the question before
- Forget conversations, appointments or events, and not remember them later
- Routinely misplace possessions, often putting them in illogical locations
- Get lost in familiar places
- Eventually forget the names of family members and everyday objects
- Have trouble finding the right words to identify objects, express thoughts or take part in conversations
Thinking and reasoning
Alzheimer’s disease causes difficulty concentrating and thinking, especially about abstract concepts like numbers. Multitasking is especially difficult, and it may be challenging to manage finances, balance checkbooks and pay bills on time. These difficulties may progress to inability to recognize and deal with numbers.
Making judgments and decisions
Responding effectively to everyday problems, such as food burning on the stove or unexpected driving situations, becomes increasingly challenging.
Planning and performing familiar tasks
Once-routine activities that require sequential steps, such as planning and cooking a meal or playing a favorite game, become a struggle as the disease progresses. Eventually, people with advanced Alzheimer’s may forget how to perform basic tasks such as dressing and bathing.
Changes in personality and behavior
Brain changes that occur in Alzheimer’s disease can affect the way you act and how you feel. People with Alzheimer’s may experience:
- Social withdrawal
- Mood swings
- Distrust in others
- Irritability and aggressiveness
- Changes in sleeping habits
- Loss of inhibitions
- Delusions, such as believing something has been stolen
Many important skills are not lost until very late in the disease. These include the ability to read, dance and sing, enjoy old music, engage in crafts and hobbies, tell stories, and reminisce.
There may be some symptoms not listed above. If you have any concerns about a symptom, please consult your doctor.
When should I see my doctor?
If you have any signs or symptoms listed above or have any questions, please consult with your doctor. Everyone’s body acts differently. It is always best to discuss with your doctor what is best for your situation.
What causes Alzheimer’s disease?
Scientists believe that for most people, Alzheimer’s disease is caused by a combination of genetic, lifestyle and environmental factors that affect the brain over time. Less than 5 percent of the time, Alzheimer’s is caused by specific genetic changes that virtually guarantee a person will develop the disease.
Although the causes of Alzheimer’s aren’t yet fully understood, its effect on the brain is clear. Alzheimer’s disease damages and kills brain cells. A brain affected by Alzheimer’s disease has many fewer cells and many fewer connections among surviving cells than does a healthy brain.
What increases my risk for Alzheimer’s disease?
There are many risk factors for this health condition, such as:
- Age: Increasing age is the greatest known risk factor for Alzheimer’s. Alzheimer’s is not a part of normal aging, but your risk increases greatly after you reach age 65. People with rare genetic changes linked to early-onset Alzheimer’s begin experiencing symptoms as early as their 30s.
- Family history and genetics: Your risk of developing Alzheimer’s appears to be somewhat higher if a first-degree relative — your parent or sibling — has the disease. Most genetic mechanisms of Alzheimer’s among families remain largely unexplained.
- Down syndrome: Many people with Down syndrome develop Alzheimer’s disease. Signs and symptoms of Alzheimer’s tend to appear 10 to 20 years earlier in people with Down syndrome than they do for the general population.
- Sex: Women seem to be more likely than are men to develop Alzheimer’s disease, in part because they live longer.
- Mild cognitive impairment: People with mild cognitive impairment (MCI) have memory problems or other symptoms of cognitive decline that are worse than might be expected for their age, but not severe enough to be diagnosed as dementia.
- Past head trauma: People who’ve had a severe head trauma seem to have a greater risk of Alzheimer’s disease.
- Lifestyle and heart health: There’s no lifestyle factor that’s been definitively shown to reduce your risk of Alzheimer’s disease. However, some evidence suggests that the same factors that put you at risk of heart disease also may increase the chance that you’ll develop Alzheimer’s. Examples include:
- Lack of exercise
- Smoking or exposure to secondhand smoke
- High blood pressure
- High blood cholesterol
- Poorly controlled type 2 diabetes
- A diet lacking in fruits and vegetables
- Lifelong learning and social engagement: Studies have found an association between lifelong involvement in mentally and socially stimulating activities and a reduced risk of Alzheimer’s disease. Low education levels — less than a high school education — appear to be a risk factor for Alzheimer’s disease
Diagnosis & treatment
The information provided is not a substitute for any medical advice. ALWAYS consult with your doctor for more information.
How is Alzheimer’s disease diagnosed?
There’s no specific test today that confirms you have Alzheimer’s disease. Your doctor will make a judgment about whether Alzheimer’s is the most likely cause of your symptoms based on the information you provide and results of various tests that can help clarify the diagnosis. Alzheimer’s disease can be diagnosed with complete accuracy only after death, when microscopic examination of the brain reveals the characteristic plaques and tangles.
To help distinguish Alzheimer’s disease from other causes of memory loss, doctors now typically rely on the following types of tests.
Physical and neurological exam
Your doctor will perform a physical exam, and is likely to check your overall neurological health by testing your:
- Muscle tone and strength
- Ability to get up from a chair and walk across the room
- Sense of sight and hearing
Blood tests may help your doctor rule out other potential causes of memory loss and confusion, such as thyroid disorders or vitamin deficiencies.
Mental status and neuropsychological testing
Your doctor may conduct a brief mental status test to assess your memory and other thinking skills. In addition, your doctor may suggest a more extensive assessment of your thinking and memory. Longer forms of neuropsychological testing may provide additional details about your mental function compared with others’ of a similar age and education level.
Images of the brain are now used chiefly to pinpoint visible abnormalities related to conditions other than Alzheimer’s disease — such as strokes, trauma or tumors — that may cause cognitive change. New imaging applications — currently used primarily in major medical centers or in clinical trials — may enable doctors to detect specific brain changes caused by Alzheimer’s. Brain-imaging technologies include: Magnetic resonance imaging (MRI), Computerized tomography (CT), Positron emission tomography (PET).
How is Alzheimer’s disease treated?
Current Alzheimer’s medications can help for a time with memory symptoms and other cognitive changes. Two types of drugs are currently used to treat cognitive symptoms:
- Cholinesterase inhibitors. These drugs work by boosting levels of a cell-to-cell communication by providing a neurotransmitter (acetylcholine) that is depleted in the brain by Alzheimer’s disease. The improvement is modest. Cholinesterase inhibitors can improve neuropsychiatric symptoms, such as agitation or depression, as well. Commonly prescribed cholinesterase inhibitors include donepezil (Aricept), galantamine (Razadyne) and rivastigmine (Exelon). The main side effects of these drugs include diarrhea, nausea, loss of appetite and sleep disturbances. In people with cardiac conduction disorders, serious side effects may include a slow heart rate and heart block.
- Memantine (Namenda). This drug works in another brain cell communication network and slows the progression of symptoms with moderate to severe Alzheimer’s disease. It’s sometimes used in combination with a cholinesterase inhibitor. Side effects may include constipation, dizziness and headache.
Sometimes other medications such as antidepressants are used to help control the behavioral symptoms associated with Alzheimer’s disease. But some medications should only be used with great caution. For example, some common sleep medications — zolpidem (Ambien), eszopiclone (Lunesta) and others — may increase confusion and the risk of falls.
Anti-anxiety medications — clonazepam (Klonopin) and lorazepam (Ativan) — increase the risk of falls, confusion and dizziness. Always check with your doctor before taking any new medications.
Lifestyle changes & Home remedies
What are some lifestyle changes or home remedies that can help me manage Alzheimer’s?
The following lifestyles and home remedies might help you cope with Alzheimer’s disease:
Creating a safe and supportive environment:
- Always keep keys, wallets, mobile phones and other valuables in the same place at home, so they don’t become lost.
- See if your doctor can simplify your medication regimen to once-daily dosing, and arrange for your finances to be on automatic payment and automatic deposit.
- Develop the habit of carrying a mobile phone with location capability so that you can call in case you are lost or confused and people can track your location via the phone. Also, program important phone numbers into your phone, so you don’t have to try to recall them.
- Make sure regular appointments are on the same day at the same time as much as possible.
- Use a calendar or whiteboard in the home to track daily schedules. Build the habit of checking off completed items so that you can be sure they were completed.
- Remove excess furniture, clutter and throw rugs.
- Install sturdy handrails on stairways and in bathrooms.
- Ensure that shoes and slippers are comfortable and provide good traction.
- Reduce the number of mirrors. People with Alzheimer’s may find images in mirrors confusing or frightening.
- Keep photographs and other meaningful objects around the house.
- Regular exercise is an important part of everybody’s wellness plan — and those with Alzheimer’s are no exception. Activities such as a daily walk can help improve mood and maintain the health of joints, muscles and the heart.
- Exercise can also promote restful sleep and prevent constipation. Make sure that the person with Alzheimer’s carries identification or wears a medical alert bracelet if she or he walks unaccompanied.
- People with Alzheimer’s who develop trouble walking may still be able to use a stationary bike or participate in chair exercises. You may be able to find exercise programs geared to older adults on TV or on DVDs.
People with Alzheimer’s may forget to eat, lose interest in preparing meals or not eat a healthy combination of foods. They may also forget to drink enough, leading to dehydration and constipation. Offer:
- High-calorie, healthy shakes and smoothies. You can supplement milkshakes with protein powders (available at grocery stores, drugstores and discount retailers) or use your blender to make smoothies featuring your favorite ingredients.
- Water, juice and other healthy beverages. Try to ensure that a person with Alzheimer’s drinks at least several full glasses of liquids every day. Avoid beverages with caffeine, which can increase restlessness, interfere with sleep and trigger a frequent need to urinate.
If you have any questions, please consult with your doctor to better understand the best solution for you.
Hello Health Group does not provide medical advice, diagnosis or treatment.
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Review Date: September 14, 2016 | Last Modified: April 12, 2017