Alzheimer’s Disease

Introduction

Alzheimer’s Disease is a progressive neurodegenerative disorder that primarily affects memory, thinking and behaviour. Understanding what Alzheimer’s disease is and its distinction from other forms of dementia is crucial. It is the most common cause of dementia, a general term for memory loss and other cognitive abilities serious enough to interfere with daily life. Alzheimer’s symptoms typically worsen over time, eventually becoming severe enough to interfere with daily tasks.

The good news is that with early diagnosis and the right care, people with Alzheimer’s Disease can manage their symptoms, maintain their quality of life, and families can plan for future care.

If you suspect you or a loved one is experiencing early symptoms of Alzheimer’s, know that help is here for you.

Signs & Symptoms

Spotting early symptoms of Alzheimer’s can make a big difference in seeking a timely diagnosis and intervention.

Common signs of Alzheimer's include:

Causes & Risk Factors

Alzheimer’s Disease is believed to be caused by a combination of genetic, lifestyle and environmental factors that affect the brain over time.

Key Alzheimer's disease causes include:

Knowing the reason for Alzheimer’s disease helps in understanding the condition and exploring potential risk reduction strategies.

Diagnosis

An accurate diagnosis will confirm whether it is Alzheimer’s and determine the next steps for management.

Types of Alzheimer’s Disease

Alzheimer’s Disease is a progressive brain disorder that primarily affects memory, thinking and behaviour. While it is commonly referred to as a single disease, it can present differently depending on age of onset, genetics and underlying biological mechanisms.

Understanding the types and their characteristics is essential for early detection, treatment planning and support.

1. Early-Onset Alzheimer’s Disease

  • Onset: Before age 65, sometimes as early as the 30s or 40s
  • Prevalence: Less than 10% of all Alzheimer’s cases
  • Cause: Often linked to inherited genetic mutations in the APP, PSEN1, or PSEN2 genes
  • Progression: Symptoms may include memory loss, difficulty concentrating, mood changes and challenges with speech or coordination

2. Late-Onset Alzheimer’s Disease

  • Onset: After age 65
  • Prevalence: The most common form of Alzheimer’s
  • Cause: No single genetic cause, but APOE-e4 is the most well-known risk gene. Lifestyle and environmental factors (such as physical activity, cardiovascular health, and education) also play a role
  • Progression: Gradual decline in memory and cognitive function, often beginning with forgetfulness and progressing to confusion, disorientation and loss of independence

3. Familial Alzheimer’s Disease (FAD)

A rare, inherited form of early-onset Alzheimer’s, passed down in an autosomal dominant pattern. Symptoms and progression are similar to early-onset Alzheimer’s but are more predictable within families. Genetic testing is usually offered to family members at risk.

Is Dementia the Same as Alzheimer’s Disease?

No, but they are closely related. Dementia is an umbrella term that describes a set of symptoms affecting memory, reasoning, language and daily functioning. It can be caused by various brain disorders.

Other types of dementia include:

  • Vascular dementia (caused by reduced blood flow to the brain)
  • Lewy body dementia
  • Frontotemporal dementia

Treatments

Treatment for Alzheimer’s disease focuses on managing symptoms, slowing progression and supporting the individual and their caregivers.

Key treatment elements:

When managed properly, people with Alzheimer’s disease can maintain a better quality of life for longer.

Ready to learn what might help you? Learn more about Alzheimer’s disease treatments on this treatment page.

Complications

Without treatment and proper care, Alzheimer’s Disease can lead to:

Prevention

While there is no definitive way to prevent Alzheimer’s Disease, you can lower the risk or delay its onset by:

With the right precautions and awareness of what causes dementia and Alzheimer’s disease, many people can potentially reduce their risk.

Living with Alzheimer’s Disease

Living well means managing your condition day to day:

Navigating Alzheimer’s Disease in Singapore

The Problem and Types of Conditions

Alzheimer’s disease is one of the most common forms of dementia, affecting memory, thinking, and behaviour. As the condition progresses, it may impact daily activities, relationships, and independence. While Alzheimer’s cannot be cured, recognising its early signs—such as forgetfulness, confusion, or difficulty managing routine tasks—can help patients and families access support sooner.

Consultation to Ongoing Care

The journey of managing Alzheimer’s disease in Singapore usually begins with a consultation with a neurologist, geriatrician, or memory clinic specialist. Initial assessments include medical history, cognitive tests, and brain scans to confirm the diagnosis. Once identified, care plans may involve medications to slow progression, cognitive therapy and lifestyle adjustments.

Families are often included in discussions, as ongoing care requires long-term planning, caregiver support, and access to community resources. Patients can expect a step-by-step approach—starting from diagnosis, to treatment, and finally, to tailored support systems that ensure both the patient and caregivers receive appropriate guidance and assistance.

When to Seek Help

Early recognition is crucial. If you or a loved one shows persistent signs of memory loss, disorientation, or changes in behaviour, it is important to seek medical advice promptly. Early intervention allows for better management of symptoms, planning for future care, and improving the quality of life for both patients and caregivers. Support services, helplines, and memory clinics in Singapore are also available to help families navigate this journey.

Find an Alzheimer’s Specialist/Neurologist in Singapore

You do not have to manage Alzheimer’s Disease alone. A specialist can help assess symptoms, provide information, adjust medication and plan for future care needs.

If you or someone you love is experiencing signs of Alzheimer’s, book a consultation to get clear answers. 

Take the first step toward stable health and peace of mind.

Insurances covering the Conditions

Ready to Get the Right Support?

If you have concerns about your health or want clear answers about what to do next, we are here to help.

Reach out to us today. Expert help and reassurance are just a message away.

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