Across the world, more than 55 million people are living with dementia, and nearly 80 per cent of them have Alzheimer’s disease. In India alone, over 4 million individuals are estimated to be affected. Despite these staggering numbers, awareness remains low, early diagnosis is rare, and the condition is often misunderstood.
This awareness month is not just about a ribbon or a campaign. It is a call to action. It urges individuals, families, communities, and health systems to prioritise brain health, support those living with cognitive decline, and invest in ongoing research that may one day lead to a cure. Alzheimer’s is not a natural part of ageing. It gradually robs people of their memory, independence, and sense of self. It also places immense emotional, physical, and financial strain on caregivers and families. With no current cure, early awareness and preventive strategies are the strongest tools we have.
What is Alzheimer’s and Brain Awareness Month?
Alzheimer’s and Brain Awareness Month, observed every June, is a global initiative that encourages people to learn more about Alzheimer’s disease, other types of dementia, and the overall importance of brain health. Led by organisations like the Alzheimer’s Association, this month is designed to educate the public, reduce stigma, and inspire action across communities, health systems, and governments.
At its core, this awareness month is about acknowledging the growing impact of Alzheimer’s disease on individuals, families, and society. It provides a platform to:
Share personal stories and raise the voices of those living with dementia
Promote early diagnosis and timely intervention
Support caregivers who bear a significant emotional and physical burden
Advocate for research funding and policy reforms
Encourage healthy habits that protect the brain over time
Why Alzheimer's Awareness Month Matters
Alzheimer’s disease is one of the most common neurodegenerative diseases worldwide, affecting millions of individuals and their families. In fact, according to the World Health Organisation, nearly 50 million people globally suffer from dementia, with Alzheimer’s accounting for 60-70% of these cases. Despite its widespread impact, many people are still unfamiliar with the disease and its consequences, both for those who suffer from it and their loved ones.
Alzheimer's and Brain Awareness Month serves as an opportunity to shine a light on the realities of the disease and to highlight the importance of brain health. This observance reminds us that early detection, preventive measures, and ongoing support are essential in managing Alzheimer’s and other dementias. It also fosters an understanding of the emotional, physical, and financial toll the disease takes on patients and caregivers alike.
What is Alzheimer’s Disease?
Alzheimer’s is a progressive neurodegenerative disease that affects memory, thinking, and behaviour. It starts slowly but worsens over time, eventually impairing a person’s ability to carry out simple tasks. The disease is caused by abnormal changes in the brain, including the accumulation of amyloid plaques and tau tangles, which disrupt the communication between brain cells.
Although Alzheimer’s is often associated with ageing, it is not a normal part of growing older. While the exact cause remains unclear, several risk factors contribute to its development, including age, family history, and genetics. Lifestyle factors like poor diet, lack of exercise, and inadequate sleep may also increase the risk.
What are the Possible Causes of Alzheimer's Disease?
Alzheimer's disease is a complex and multifactorial condition. While the exact cause remains unclear, several factors are believed to contribute to the development and progression of the disease:
Genetic Factors
One of the most significant risk factors for Alzheimer's is genetic inheritance. People with a family history of the disease, particularly those carrying the APOE e4 gene, are more likely to develop Alzheimer’s. However, the presence of this gene does not guarantee the disease, and not all Alzheimer's cases are genetic.
Age
Age is the biggest known risk factor for Alzheimer's disease. The risk doubles every five years after the age of 65. While Alzheimer's is not a part of normal ageing, older adults are more prone to developing the disease.
Brain Changes
Alzheimer's is associated with the buildup of amyloid plaques and tau tangles in the brain. These abnormal protein deposits disrupt communication between brain cells, leading to their degeneration and death.
Cardiovascular Health
Conditions that affect the heart and blood vessels, such as high blood pressure, high cholesterol, and diabetes, can increase the risk of Alzheimer's. Poor cardiovascular health leads to reduced blood flow to the brain, which can contribute to cognitive decline.
Environmental Toxins
Exposure to environmental toxins, such as heavy metals or chemicals, may play a role in the development of Alzheimer's, although the evidence is still inconclusive.
Chronic Inflammation
Inflammation in the brain, possibly due to infections, trauma, or other conditions, might accelerate the progression of Alzheimer's by damaging brain cells over time.
Hormonal Changes
Hormonal changes, especially a decline in estrogen levels in women post-menopause, are believed to contribute to the risk of developing Alzheimer's disease. However, the link between hormones and Alzheimer's remains a topic of active research.
Lifestyle Factors
A lack of physical exercise, poor diet, smoking, and excessive alcohol consumption are all lifestyle choices that can increase the risk of Alzheimer's by contributing to poor brain health.
Head Injuries
Traumatic brain injuries (TBIs), particularly repeated concussions, are associated with an increased risk of Alzheimer's disease. This is particularly a concern for athletes involved in contact sports
Chronic Stress
Long-term stress can alter brain function, leading to changes that contribute to cognitive decline and may increase the risk of Alzheimer's.
What are the Symptoms of Alzheimer's Disease?
Alzheimer’s disease is characterised by a gradual decline in cognitive function, which affects memory, thinking, and behaviour. The symptoms can vary depending on the stage of the disease and the individual, but they typically start mild and progress over time. Here are some of the key symptoms of Alzheimer's disease:
Memory Loss
One of the hallmark signs of Alzheimer's is memory loss, particularly the inability to remember recent events or information. People with Alzheimer's may repeatedly ask the same questions or forget recently learned information.
Short-Term Memory Loss
Difficulty recalling events that happened recently or conversations can be one of the first symptoms.
Long-Term Memory Loss
As the disease progresses, individuals may also forget significant life events or personal information.
Difficulty Performing Familiar Tasks
People with Alzheimer's often struggle with completing daily tasks that were once familiar. This includes things like managing finances, driving, cooking, or even following instructions for a recipe.
Individuals may forget the steps involved in performing a task they have done many times before.
Disorientation and Confusion
Individuals may become easily disoriented, especially when it comes to time and place. They may forget the day of the week, the season, or even where they are.
Getting Lost
They may find themselves wandering or getting lost in familiar places like their own home or neighbourhood.
Problems with Communication
Alzheimer’s disease affects the ability to communicate, making it difficult for people to find the right words, follow conversations, or understand what others are saying.
Frequent Word-Finding Difficulty
Individuals might repeat themselves or have trouble keeping up with conversations.
Judgment and Decision-Making:
A decline in judgment and decision-making abilities is common. For instance, people with Alzheimer's may make poor financial decisions, be less cautious about personal safety, or display uncharacteristic behaviour.
Poor Judgment
This may involve making decisions that seem inappropriate or out of character.
Changes in Mood and Personality
Alzheimer's can cause significant changes in mood and personality. Individuals may experience mood swings, become easily upset or irritable, or seem withdrawn and uninterested in things they used to enjoy.
Depression and Anxiety
Feelings of sadness, fear, and depression are common, especially in the early stages of Alzheimer's.
Difficulty with Spatial and Visual Perception
Alzheimer’s can impair spatial awareness and visual perception. People may have trouble judging distances or recognising faces, even familiar ones.
Difficulty Reading or Determining Colour
This can lead to problems with driving or navigating unfamiliar environments.
Withdrawal from Social Activities
As the disease progresses, people with Alzheimer's may withdraw from social activities, hobbies, work, or family gatherings. They may feel overwhelmed or embarrassed by their symptoms and prefer to be alone.
Isolation
Individuals may lose interest in activities they once enjoyed or start avoiding social situations.
Changes in Sleep Patterns
People with Alzheimer's often experience disrupted sleep patterns. They may sleep during the day and become restless at night. This is also known as sundowning, where symptoms of confusion and agitation worsen during the late afternoon and evening.
Difficulty with Planning and Organising
Individuals may have difficulty managing complex tasks such as paying bills, managing appointments, or keeping track of important dates.
Problems with Financial Decisions
They may also experience difficulties with planning or problem-solving.
Physical Symptoms (in Later Stages)
As Alzheimer's progresses, physical symptoms become more noticeable. This includes difficulty walking, loss of coordination, and in severe cases, the inability to perform even basic tasks like eating or dressing.
Motor Function Decline
The ability to move, balance, and coordinate body movements can be compromised.
Symptom | Description | Impact |
Memory Loss | Difficulty remembering recent events, appointments, or conversations. | Can affect daily life and relationships; early symptom in Alzheimer's. |
Difficulty Performing Familiar Tasks | Struggling with tasks like cooking, driving, or managing finances. | Loss of independence and reliance on others for routine activities. |
Disorientation and Confusion | Forgetting the time of day, getting lost in familiar places, and confusion about current events. | Can lead to a sense of anxiety and distress, as well as an inability to navigate familiar environments. |
Communication Problems | Difficulty finding words, repeating oneself, or trouble understanding conversations. | Leads to frustration and misunderstandings in social interactions. |
Poor Judgment and Decision-Making | Making decisions that may not align with the person's usual behavior, such as giving away money or neglecting hygiene. | May cause embarrassment, social isolation, and increased vulnerability to exploitation. |
Mood and Personality Changes | Experiencing mood swings, anxiety, or depression. | Affects relationships and can lead to withdrawal from social interactions. |
Difficulty with Spatial Awareness | Struggling to judge distances, recognize faces, or navigate spaces. | Can increase risk of falls and accidents, and may impair mobility. |
Social Withdrawal | Avoiding social activities, hobbies, and spending time with loved ones due to embarrassment or lack of interest. | Leads to social isolation and can contribute to depression. |
Sleep Disruptions (Sundowning) | Experiencing increased confusion and agitation during the evening or night. | Disrupted sleep patterns can lead to fatigue, irritability, and worsening of symptoms. |
Decline in Physical Function | Loss of coordination, difficulty with walking, and the inability to perform daily activities like eating or dressing. | Can lead to increased dependence on caregivers for physical tasks. |
How is Alzheimer’s Disease Diagnosed?
Diagnosing Alzheimer’s disease is a multi-step process done by a neurologist to understand memory decline and rule out other health issues.
Medical History & Family Interview
The neurologist asks about memory loss, mood, daily functioning, and changes in behavior.
A close family member may be involved to give insight into symptoms over time.
Physical & Neurological Exams
Tests check reflexes, balance, speech, and coordination to rule out stroke or other brain conditions.
These exams help identify any nervous system abnormalities.
Cognitive and Memory Tests
Standard tools like MMSE or MoCA are used to assess thinking, problem-solving, and memory.
Low scores may suggest early signs of dementia or Alzheimer’s.
Brain Imaging (MRI or PET)
MRI or CT scans detect brain shrinkage, bleeding, or tumors.
PET scans may show amyloid plaques, a hallmark of Alzheimer’s.
Blood Tests
Used to check for vitamin deficiencies, thyroid problems, or infections that might mimic dementia.
They help rule out treatable conditions with similar symptoms.
Spinal Fluid Test (if needed)
Genetic Testing (for early-onset cases)
Methods Used to Diagnose Alzheimer’s Disease
Method | What It Checks | Why It’s Used |
Cognitive Tests | Memory, problem-solving, language | Detect signs of dementia |
Brain Imaging (MRI/PET) | Brain shrinkage or amyloid build-up | Confirm physical brain changes |
Blood Tests | Thyroid, B12, infection | Rule out other medical causes |
Medical History | Behaviour, memory issues, daily function | Understand the symptom pattern |
Spinal Tap | Amyloid & tau in cerebrospinal fluid | Support Alzheimer’s diagnosis |
Hope in Treatment: Managing Alzheimer’s Disease Effectively
With growing awareness and medical progress, Alzheimer’s disease can now be managed more effectively than ever before. Early diagnosis and a personalised care plan by a neurologist can significantly improve quality of life and slow disease progression.
Medications That Support Brain Function
Neurologists often prescribe cholinesterase inhibitors (like Donepezil and Rivastigmine) to enhance memory, attention, and daily functioning in early to moderate stages.
Memantine helps regulate brain chemicals and is beneficial in moderate to advanced stages for maintaining independence longer.
Managing Mood and Behaviour Gently
Emotional changes like anxiety or irritability are addressed with safe and targeted medications to bring calm and comfort.
Therapies like music, art, or routine-based care are used alongside medicine to encourage positive emotional health without relying only on drugs.
Cognitive and Functional Support
Cognitive exercises and memory-stimulating activities are introduced to help patients stay mentally active.
Occupational therapy helps patients adapt to daily routines, ensuring safety and confidence in familiar surroundings.
Healthy Lifestyle Adjustments
A balanced diet, regular exercise, quality sleep, and staying socially connected are simple yet powerful tools to boost brain health.
Families and caregivers are also supported through counseling, training, and support groups, creating a positive and caring environment.
Innovative Research and Future Therapies
Newer treatments, such as anti-amyloid therapies and brain-targeted drugs, are showing promise in ongoing clinical trials.
Patients can also benefit from participating in research programs, gaining early access to emerging therapies while helping advance science.
Simple Daily Habits to Keep Your Brain Sharp
Cognitive decline is not an inevitable part of ageing. In fact, small changes in daily habits can make a huge difference. Here are science-backed measures that people of all ages can adopt to maintain and improve brain health:
Get Moving Regularly
Cardiovascular exercise like walking, swimming, or cycling improves blood flow to the brain and boosts memory.
Stay Socially Connected
Regular interaction with friends, family, and communities lowers your risk of cognitive decline by keeping your brain engaged.
Say No to Smoking
Smoking damages blood vessels, including those in the brain. Quitting smoking is one of the best steps for long-term brain protection.
Read More Often
Reading books strengthens memory, comprehension, and critical thinking, keeping your mind young and active.
Prioritise Quality Sleep
Deep, restorative sleep is when the brain clears out toxins. 7–9 hours of sleep per night is ideal.
Eat a Brain-Healthy Diet
Foods rich in antioxidants, omega-3s, and vitamins (like leafy greens, berries, and nuts) are essential for protecting brain cells.
Prevent Head Injuries
Always wear seatbelts, avoid risky activities, and make your home fall-proof to reduce the chance of brain trauma.
Play Brain Games
Puzzle-solving, chess, or learning a new skill keeps neural connections active and reduces dementia risk.
Article By Dr. Vivek Barun
Sr. Consultant - Neurology
Artemis Hospitals
Frequently Asked Questions
What is Alzheimer’s disease?
Alzheimer’s is a progressive brain disorder that slowly destroys memory, thinking skills, and the ability to carry out simple tasks. It is the most common cause of dementia in older adults.
What are the early signs of Alzheimer’s?
Early signs include memory loss that disrupts daily life, confusion with time or place, difficulty completing familiar tasks, and changes in mood or personality.
Can Alzheimer’s disease be prevented?
While there is no guaranteed way to prevent Alzheimer’s, certain habits like regular exercise, eating a balanced diet, staying mentally active, and avoiding smoking may lower your risk.
How is Alzheimer’s different from normal aging?
Normal aging might involve occasional forgetfulness, but Alzheimer’s causes severe memory loss, disorientation, and poor judgment that interfere with everyday life.
Is Alzheimer’s hereditary?
Genes can play a role, especially if a close family member has had the disease. However, lifestyle and environmental factors also significantly influence risk.
Who is at risk for Alzheimer’s disease?
Risk increases with age, especially after 65. Other factors include family history, heart disease, diabetes, lack of physical activity, and low education levels.
How is Alzheimer’s diagnosed?
A neurologist may use memory and cognitive tests, brain imaging like MRI or CT scans, and lab tests to rule out other conditions.
What treatment options are available?
While there’s no permanent cure, medications can help slow symptoms. Supportive therapies, brain exercises, and a healthy lifestyle can also improve quality of life.
How can I support a loved one with Alzheimer’s?
Be patient and empathetic. Help them with routine tasks, maintain a calm environment, encourage activities they enjoy, and seek caregiver support when needed.
How can I participate in Alzheimer’s and Brain Awareness Month?
You can wear purple to show support, join awareness events, donate to research, or educate others about brain health and early signs of dementia.
