Early signs of Alzheimer's

Key points
- Alzheimer’s disease is the most common form of dementia, a serious brain disorder that impacts daily living through memory loss and cognitive changes.
- The primary risk factors of Alzheimer’s are age, family history, and genetics.
- US scientists have developed a biosensor that could detect the early stages of Alzheimer's disease (AD) and Parkinson's disease (PD) by measuring low concentrations of protein aggregates in cerebrospinal fluid (CSF).
- Symptoms of Alzheimer’s disease usually develop slowly and gradually worsen over time, progressing from mild forgetfulness to widespread brain impairment.
Alzheimer’s disease is the most common form of dementia, a serious brain disorder that impacts daily living through memory loss and cognitive changes. Although not all memory loss indicates Alzheimer’s disease, one in ten people over 65 years of age, and over half of those over 85 have Alzheimer’s disease. Currently, 26 million people worldwide have this dementia, and over 15 million Americans will be affected by the year 2050.
Symptoms of Alzheimer’s disease usually develop slowly and gradually worsen over time, progressing from mild forgetfulness to widespread brain impairment. Chemical and structural changes in the brain slowly destroy the ability to create, remember, learn, reason, and relate to others. As critical cells die, drastic personality loss occurs and body systems fail.
Who is at risk of Alzheimer’s disease?
The primary risk factors of Alzheimer’s are age, family history, and genetics. However, there are other risk factors that you can influence. Maintaining a healthy heart and avoiding high blood pressure, heart disease, stroke, diabetes, and high cholesterol can decrease the risk of Alzheimer’s. Watch your weight, avoid tobacco and excess alcohol, stay socially connected, and exercise both your body and mind.
Early-onset Alzheimer’s affects patients under the age of 65. This relatively rare condition is seen more often in patients whose parents or grandparents developed Alzheimer’s disease at a young age, and is generally associated with three specific gene mutations (the APP gene found on chromosome 21, the PSI gene on chromosome 12, and the PS2 gene on chromosome 1).
Memory loss that disrupts daily life may be a symptom of Alzheimer's, a fatal brain disease that causes a slow decline in memory, thinking and reasoning skills. There are 10 warning signs and symptoms of Alzheimer's. Every individual may experience one or more of these signs in different degrees. If you notice any of them, please see a doctor.
1. Memory changes that disrupt daily life. One of the most common signs of Alzheimer’s, especially
in the early stages, is forgetting recently learned information. Others include forgetting important dates or
events; asking for the same information over and over; relying on memory aides (e.g., reminder notes or
electronic devices) or family members for things they used to handle on their own. What's typical?
Sometimes forgetting names or appointments, but remembering them later.
2. Challenges in planning or solving problems. Some people may experience changes in their
ability to develop and follow a plan or work with numbers. They may have trouble following a familiar
recipe or keeping track of monthly bills. They may have difficulty concentrating and take much longer to dothings than they did before. What's typical? Making occasional errors when balancing a checkbook.
Written and revised by
Gerald Hurowitz, M.D.
Our doctors write and review articles for accuracy and keep them up to date.
health.am provides general information, not medical advice. Always consult a qualified health professional about your own health.
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