Dementia in India: A Complete Guide for Families
Author: Abhasa Rehabilitation and Wellness Home
Reviewed by: Dr. Naveen Kumar, MBBS, DPM (Psychiatry)
Last Updated: December 2025
Reading Time: 14 minutes
Expert Review: Developed by Abhasa Rehabilitation and Wellness Home, reviewed by Dr. Naveen Kumar, MBBS, DPM (Psychiatry), with 15+ years experience in psychiatric care. Based on evidence from WHO, Lancet Commission 2024, NIH, and peer-reviewed meta-analyses. Last updated: December 2025.
Introduction
8.8 million Indians live with dementia. That’s roughly the population of Bengaluru. And every year, another 1.2 million people join them.
Maybe you’re reading this because someone in your family has changed. Your father keeps asking the same question—the one you answered ten minutes ago. Your mother got lost coming home from a shop she’s visited for thirty years. Or maybe it’s smaller things. A sharpness fading. Words going missing mid-sentence.
Here’s what you need to know: dementia isn’t just forgetting things. It changes how a person thinks, reasons, and moves through daily life. It changes families too.
But here’s the other thing—and this matters just as much: dementia isn’t a death sentence. It’s not inevitable. And understanding it is the first step toward living with it as well as possible.
This guide covers what dementia actually is, how to recognize it, what causes it, and what can help. Whether you’re worried about yourself or someone you love, you’ll find practical, research-based information here.
What Is Dementia, Really?
Let’s start with what dementia isn’t: it’s not a disease. It’s a syndrome—an umbrella term for a group of symptoms. Think of it like “fever.” Fever isn’t itself a disease; it’s a sign that something is going on in your body. Dementia is similar.
Dementia is a syndrome where cognitive abilities decline enough to interfere with daily life. It affects memory, thinking, orientation, and judgment. Dementia is not a normal part of aging.
That last part is worth repeating. According to the WHO, dementia is NOT an inevitable consequence of getting older. Yes, age is a risk factor. But most older adults don’t develop dementia. And many who do develop it in their 60s or 70s, sometimes even younger.
More Than Memory Loss
When people think of dementia, they think of forgetting things. And yes, memory problems are common. But dementia affects much more:
- Thinking and reasoning: Trouble solving problems that used to be straightforward
- Language: Struggling to find words or follow conversations
- Orientation: Confusion about time, place, or even who people are
- Judgment: Making decisions that seem out of character
- Mood and behavior: Personality changes, withdrawal, agitation
It’s not just about memory. It’s about the whole way someone experiences and responds to the world.
The Myth That Won't Go Away
Here’s a troubling finding from the World Alzheimer Report 2024: 80% of the general public believes dementia is a normal part of aging. That’s up from 66% just five years ago.
This myth is dangerous. It delays diagnosis. It stops people from seeking help. It makes families think, “Well, she’s just getting old.”
She’s not “just getting old.” If cognitive changes are interfering with daily life, something specific is happening in the brain. And understanding what that something is matters—because some causes are treatable.
Types of Dementia: What's the Difference?
Dementia has many causes. The type matters because different types progress differently and respond to different treatments.
| Type | Percentage | Key Feature |
|---|---|---|
| Alzheimer's Disease | 60-70% | Memory loss, plaques and tangles |
| Vascular Dementia | 10-20% | After stroke, stepwise decline |
| Lewy Body Dementia | 5-10% | Visual hallucinations, movement issues |
| Frontotemporal Dementia | 5-10% | Personality changes first |
| Mixed Dementia | Variable | Combination of types |
Alzheimer's Disease
The most common cause—responsible for 60-70% of dementia cases, according to WHO data. It was first described by Dr. Alois Alzheimer in 1906 when he examined the brain of a woman who had died with unusual mental illness symptoms.
In Alzheimer’s, abnormal proteins build up in the brain. Amyloid plaques form between nerve cells. Tau tangles form inside them. Over time, brain cells die and the brain shrinks.
Memory loss typically comes first—especially memory for recent events. Someone might remember their wedding day clearly but forget what happened yesterday. The disease progresses gradually over years.
Vascular Dementia
The second most common type. It happens when blood flow to the brain is reduced—often after a stroke, but sometimes from chronic blood vessel disease.
The pattern can be different from Alzheimer’s. Instead of gradual decline, people may have sudden changes followed by periods of stability. Sometimes called “stepwise” decline.
Risk factors for heart disease are risk factors for vascular dementia too: high blood pressure, diabetes, smoking, high cholesterol.
Lewy Body Dementia
Named after abnormal protein deposits (Lewy bodies) found in the brain. This type has some distinctive features:
- Visual hallucinations—seeing things that aren’t there—often early in the disease
- Movement problems similar to Parkinson’s disease
- Fluctuating alertness—someone might be sharp one hour and confused the next
- Sleep disturbances, including acting out dreams
Lewy body dementia can be tricky to diagnose because it shares features with both Alzheimer’s and Parkinson’s.
Frontotemporal Dementia
This type affects the front and sides of the brain first—areas that control personality, behavior, and language. Unlike Alzheimer’s, memory may be relatively preserved early on.
What changes instead: personality, judgment, social behavior. Someone might become impulsive, inappropriate, or apathetic. Language problems are also common.
Frontotemporal dementia often starts younger than other types—sometimes in the 40s or 50s.
Mixed Dementia
Having more than one type at once is more common than previously thought. Alzheimer’s combined with vascular dementia is a typical example. The brain changes of different types can occur together.
Signs That Something May Be Wrong
How do you know if memory problems are normal aging or something more? Here’s a simple guide:
- Normal aging: Occasionally forgetting where you put your keys
- Possible dementia: Forgetting what keys are for
The difference isn’t just forgetfulness. It’s whether cognitive changes are interfering with daily life.
Early Signs (Mild Stage)
Early dementia is often subtle. It might look like:
- Forgetting recent conversations or events
- Asking the same questions repeatedly
- Difficulty finding the right words
- Losing track of dates or the time of year
- Misplacing things—and not being able to retrace steps
- Trouble managing finances or following recipes
- Subtle personality shifts—maybe more withdrawn or anxious
At this stage, many people can still live independently. They might develop strategies to cope—lists, reminders, routines. Sometimes families don’t notice. Or they notice but attribute it to stress, age, or tiredness.
Middle Stage (Moderate)
As dementia progresses, changes become harder to miss:
- Forgetting significant personal history
- Confusion about where they are or how they got there
- Needing help with daily tasks—choosing clothes, bathing, managing medications
- Sleep problems—waking at night, sleeping during the day
- Wandering and getting lost
- Suspicion, agitation, or anxiety
- Difficulty recognizing family members or friends
This stage is often the longest. It can last for years. Care needs increase significantly.
Late Stage (Severe)
In advanced dementia:
- Near-total memory loss
- Very limited or no verbal communication
- Full-time care needed for all activities
- Physical decline—difficulty walking, swallowing, controlling bladder and bowels
- Increased vulnerability to infections, including pneumonia
Even at this stage, connection matters. Holding hands, playing familiar music, being present—these things still reach people.
When to See a Doctor
If you’re noticing any of these patterns—in yourself or someone else—don’t wait.
- Persistent memory concerns
- Changes noticed by family or friends
- Difficulty keeping up with work or daily responsibilities
- Getting lost in familiar places
- Trouble with finances or managing medications
Early detection won’t reverse dementia, but it opens doors. Access to treatments that work better early. Time to plan. Ability to address any reversible causes. Connection to support services.
What Causes Dementia?
In India, 7.4% of adults over 60 have dementia—that’s from the landmark LASI-DAD study. More than 8.8 million people. And with the population aging, these numbers will rise.
Understanding what causes dementia helps in two ways: knowing what’s happening, and knowing what might be preventable.
What Happens in the Brain
Dementia occurs when nerve cells in the brain are damaged or die. Different diseases cause different types of damage:
- Alzheimer’s: Amyloid plaques and tau tangles build up
- Vascular: Blood vessels are blocked or damaged
- Lewy body: Abnormal protein deposits form
The result is the same: brain cells can’t communicate properly. Functions controlled by affected areas—memory, language, reasoning—start to fail.
The 14 Risk Factors You Can Change
This is where hope enters the picture.
The 2024 Lancet Commission—a major review of all dementia research—identified 14 modifiable risk factors. Addressing all of them could potentially prevent up to 45% of dementia cases.
Forty-five percent. Nearly half.
Early Life:
- Less education
Midlife (40-65):
- Hearing loss (untreated)
- High blood pressure
- Obesity
- Excessive alcohol
- Traumatic brain injury
- High LDL cholesterol (new finding in 2024)
Later Life (65+):
- Smoking
- Depression
- Physical inactivity
- Social isolation
- Diabetes
- Air pollution
- Untreated vision loss (new finding in 2024)
Notice what’s on this list: hearing loss and vision loss. These aren’t just quality-of-life issues. Leaving them untreated increases dementia risk. Getting hearing aids and glasses isn’t optional—it’s brain protection.
Factors You Cannot Change
Some risk factors are fixed:
- Age: The biggest risk factor. Risk doubles roughly every five years after age 65.
- Family history: Having a close relative with dementia increases risk—but doesn’t guarantee you’ll develop it.
- Genetics: The APOE-e4 gene variant increases risk, but many people with the gene never develop dementia.
- Down syndrome: People with Down syndrome have higher dementia risk and often develop it earlier.
India-Specific Factors
Why might India have higher prevalence? Researchers point to several factors according to Nature Reviews Neurology:
- Lower formal education rates historically
- Rising diabetes and hypertension
- Air pollution in major cities
- Less awareness, leading to later diagnosis
- Interestingly, rural areas show higher prevalence than urban areas
How Is Dementia Diagnosed?
There’s no single test for dementia. Diagnosis involves putting together pieces of a puzzle.
What to Expect
A thorough evaluation typically includes:
- Medical history: What symptoms have you noticed? When did they start? Any family history?
Physical examination: General health, neurological function - Cognitive tests: Standardized assessments of memory, thinking, language, and problem-solving
- Blood tests: To rule out other causes like thyroid problems, vitamin deficiencies, infections
- Brain imaging: CT or MRI scans to look at brain structure; sometimes PET scans to look at function
- Sometimes: Lumbar puncture to check for biomarkers in spinal fluid
The 2024 Shift in Diagnosis
Something significant happened in dementia diagnosis recently. The Alzheimer’s Association released revised criteria in 2024 that define Alzheimer’s biologically—not just based on symptoms.
What does this mean? Biomarkers—measurable signs of disease in blood or brain imaging—can now detect Alzheimer’s changes years before symptoms appear. This opens possibilities for earlier intervention, when treatments might be more effective.
Research is advancing rapidly. According to NIH/NIA 2024, there are now 495 clinical trials testing treatments for Alzheimer’s and related dementias.
Why Early Diagnosis Matters
Getting diagnosed can feel frightening. But knowing has real benefits:
- Planning: Making decisions about care, finances, and legal matters while the person can participate
- Treatment: Some medications work better in early stages
- Ruling out reversibles: Some conditions mimic dementia but can be treated
- Support access: Connecting with services, support groups, and resources
- Research participation: Clinical trials often seek people at early stages
What Helps: Treatment Options
Let’s be honest: there’s no cure for most types of dementia. Not yet. But treatment can help manage symptoms, slow progression, and improve quality of life. Sometimes significantly.
Medications for Symptoms
Cholinesterase Inhibitors:
These medications help with memory and thinking by preventing the breakdown of a brain chemical important for learning and memory. They include:
- Donepezil (Aricept)
- Rivastigmine (Exelon)
- Galantamine (Razadyne)
They’re used for mild to moderate Alzheimer’s. They don’t stop the disease, but they can help symptoms for a while.
Memantine:
Used for moderate to severe Alzheimer’s, memantine regulates glutamate, another brain chemical. It’s often prescribed alongside cholinesterase inhibitors.
For Behavioral Symptoms:
- Antidepressants if depression or anxiety is present
- Sleep medications for severe sleep disturbances
- Antipsychotics—used carefully and only when necessary for severe agitation or psychosis, due to side effect risks
Newer Treatments (2024)
Recently, the FDA approved medications that target the underlying disease process in Alzheimer’s, as documented in PMC research:
- Lecanemab (Leqembi): An antibody that removes amyloid plaques from the brain
- Donanemab: Similar approach, showing promise in clinical trials
These are the first treatments that actually slow disease progression rather than just managing symptoms. But they come with caveats:
- Only work for early-stage Alzheimer’s
- Require regular brain scans to monitor for side effects
- Expensive and not yet widely available
- Not yet available in India through regular channels
Still, they represent a shift in how we think about dementia treatment—from purely symptomatic to disease-modifying.
Non-Drug Approaches
Medications aren’t the only thing that helps. Our therapeutic approaches at Abhasa include several evidence-based non-drug interventions.
- Cognitive Stimulation Therapy (CST):
Structured group activities that engage thinking skills. Research shows benefits for cognition and quality of life. Examples: reminiscence sessions, word games, creative activities.
- Physical Activity:
Regular exercise—walking, swimming, yoga—improves overall health and may slow cognitive decline. It also helps with mood, sleep, and physical function.
- Music and Art Therapy:
Music can evoke memories and emotions even in advanced dementia. Art provides expression without needing words. Both can reduce agitation and improve well-being.
- Occupational Therapy:
Helps people maintain independence longer by adapting activities and environments. Making the home safer. Simplifying tasks. Using tools and strategies to compensate for cognitive changes.
Psychotherapy can also help—both for the person with dementia and for family members adjusting to changes.
Can Dementia Be Prevented?
The Lancet Commission’s finding deserves repeating: up to 45% of dementia cases could potentially be prevented or delayed. That’s not a small number.
Prevention isn’t about doing one thing perfectly. It’s about addressing multiple factors over your lifetime.
Protect Your Heart
What’s good for your heart is good for your brain. The same blood vessels that supply your heart supply your brain. Damage them, and both organs suffer.
- Get blood pressure checked and controlled
- Manage diabetes if you have it
- Keep cholesterol in healthy ranges
- Don’t smoke—or quit if you do
Stay Mentally Active
Your brain benefits from challenge and novelty:
- Learn new skills—a language, an instrument, a craft
- Read widely
- Play games that require thinking—cards, chess, puzzles
- Stay curious about the world
The “use it or lose it” idea has some truth. Mental activity builds cognitive reserve—a buffer against decline.
Move Your Body
Physical activity is one of the most powerful brain protections available. Aim for 150 minutes of moderate activity weekly. That’s 30 minutes, five days a week.
Walking counts. So does dancing, swimming, gardening, cycling. The best exercise is the one you’ll actually do.
Protect Your Senses
This is new and important: untreated hearing and vision loss are dementia risk factors.
Get your hearing tested. If you need hearing aids, use them. Get regular eye exams. If you need glasses, wear them.
These aren’t vanity issues. They’re brain health issues.
Stay Connected
Social isolation increases dementia risk. Human connection is protective.
Maintain friendships. Participate in community activities. Stay involved with family. Join groups based on interests—religious, recreational, volunteer.
If you’re naturally introverted, you don’t need to become a social butterfly. But some meaningful connection matters.
For Those Who Care
70% of dementia care worldwide is provided by family members. If you’re caring for someone with dementia, this section is for you.
Caregiver Burnout Is Real
Caring for someone with dementia is hard. Physically hard—the lifting, the interrupted sleep, the constant vigilance. Emotionally hard—watching someone you love change, dealing with frustration and sadness, sometimes facing anger or accusations that aren’t really about you.
Caregiver burnout is common. And it’s not a moral failure. It’s what happens when human beings face more than they can sustainably handle alone.
Signs of burnout:
- Exhaustion that doesn’t improve with rest
- Increased illness
- Feeling hopeless or resentful
- Withdrawing from other relationships
- Neglecting your own health
Getting Support
You cannot do this alone. That’s not weakness—it’s reality.
- Respite care: Temporary relief so you can rest, travel, or just breathe. This might mean adult day programs, in-home care services, or short-term residential care.
- Support groups: Connecting with others who understand. The feeling that “someone gets it” can be powerful. Many cities have Alzheimer’s or dementia caregiver support groups.
- Family meetings: Sharing responsibilities among siblings and relatives. Being explicit about who does what.
- Professional help: Counseling for caregivers. Care managers who can coordinate services.
Our family support program helps families navigate the challenges of caring for loved ones with cognitive changes.
Practical Tips
Some strategies that help:
- Establish routines: Predictability reduces confusion and anxiety
- Simplify choices: Instead of “What do you want for breakfast?” try “Would you like toast or eggs?”
- Ensure safety: Remove hazards, install grab bars, consider door alarms if wandering is a concern
- Take care of yourself: This isn’t selfish. You can’t pour from an empty cup.
- Document everything: Keep a log of symptoms, behaviors, medications for medical appointments
Questions Families Often Ask
Is dementia hereditary?
Having a family member with dementia does increase risk, but most cases are not directly inherited. Lifestyle factors often matter more than genetics. Even with genetic risk, the prevention strategies we’ve discussed can help. Most people with a family history will not develop dementia.
How long do people live with dementia?
It varies greatly—from 3 to 20 years depending on type, age at diagnosis, overall health, and quality of care. Alzheimer’s averages 8-10 years after diagnosis. But these are averages. Some people live much longer. Focus on quality of life, not just length.
Can dementia be reversed?
Most types cannot be reversed. But some conditions that look like dementia can be treated and improved: vitamin B12 deficiency, thyroid problems, depression, normal pressure hydrocephalus, medication side effects. That’s why proper diagnosis matters—you want to rule out treatable causes.
What's the difference between dementia and Alzheimer's?
Alzheimer’s is a specific disease. Dementia is the umbrella term for symptoms of cognitive decline. Alzheimer’s causes 60-70% of dementia cases, but other diseases cause dementia too. Think of it like this: all Alzheimer’s is dementia, but not all dementia is Alzheimer’s.
Should I tell someone they have dementia?
Generally, yes—gently and with support. Most people want to know what’s happening to them. Knowing allows participation in planning and decision-making. Consult with medical professionals about the best approach for your specific situation.
How can I make home safer?
Remove trip hazards like loose rugs. Install grab bars in bathrooms. Use night lights. Secure medications and potentially dangerous items. Consider door alarms if wandering is a concern. Label drawers and rooms. Remove or disable the stove if unsupervised cooking is risky.
When to Reach Out
If you’re noticing persistent memory or thinking changes—in yourself or someone you care about—reach out to a doctor. Start with a general physician who can refer to specialists as needed.
If you’re a caregiver feeling overwhelmed, you deserve support too. Burnout doesn’t make you a bad person. It makes you someone who needs help.
Emergency Resources in India:
NIMHANS Helpline
Vandrevala Foundation
iCALL Psychosocial Helpline
Dementia care requires specialized understanding—of the condition, of the person, and of the family. At Abhasa, we support individuals and families navigating this journey with compassion and expertise. Learn more about how we treat complex conditions, or contact us any time.
Living with Dementia: There Is Hope
Dementia changes things. That’s true. But it doesn’t end meaning, connection, or the possibility of good days.
Many people live well with dementia for years. They enjoy music, family visits, familiar places, simple pleasures. They give and receive love. They matter.
Early detection and intervention can make a real difference. Support—for the person with dementia and for caregivers—makes a difference. And research is advancing faster than ever. Today’s diagnosis doesn’t have the same outlook it did even ten years ago.
You’re not alone in this. Millions of families are walking a similar path. Help exists. Hope exists.
Understanding dementia is the first step. Getting support is the next. Whether you’re worried about yourself or someone you love, reaching out is an act of care.
For specialized dementia care and support, start a conversation with our team.
Important Note: This article provides general information about dementia for educational purposes. It is not a substitute for professional medical advice, diagnosis, or treatment. If you or someone you know is experiencing symptoms of dementia, please consult a qualified healthcare provider.
Emergency Resources:
NIMHANS Helpline: 080-46110007
Vandrevala Foundation: 1860-2662-345 (24/7)
iCALL Psychosocial Helpline: 9152987821
Medical References
- World Health Organization. (2024). Dementia Fact Sheet. https://www.who.int/news-room/fact-sheets/detail/dementia
- Livingston, G., et al. (2024). Dementia prevention, intervention, and care: 2024 report of the Lancet standing Commission. The Lancet. https://pubmed.ncbi.nlm.nih.gov/39096926/
- Lee, J., et al. (2023). Prevalence of dementia in India: National and state estimates from a nationwide study. Alzheimer’s & Dementia. https://pubmed.ncbi.nlm.nih.gov/36637034/
- Alzheimer’s Disease International. (2024). World Alzheimer Report 2024. https://www.alzint.org/resource/world-alzheimer-report-2024/
- National Institute on Aging. (2024). NIH Alzheimer’s and Related Dementias Research Progress Report. https://www.nia.nih.gov/about/2024-nih-dementia-research-progress-report
- Alzheimer’s Association. (2024). Revised criteria for diagnosis and staging of Alzheimer’s disease. Alzheimer’s & Dementia. https://pubmed.ncbi.nlm.nih.gov/38934362/
- Mukadam, N., et al. (2021). Changing demography and the challenge of dementia in India. Nature Reviews Neurology. https://www.nature.com/articles/s41582-021-00565-x
- Chen, X., et al. (2025). A 2025 update on treatment strategies for the Alzheimer’s disease spectrum. PMC. https://pmc.ncbi.nlm.nih.gov/articles/PMC12637128/
- Alzheimer’s Association. (2024). 2024 Alzheimer’s disease facts and figures. Alzheimer’s & Dementia. https://pubmed.ncbi.nlm.nih.gov/38689398/
- World Health Organization. (2019). Risk reduction of cognitive decline and dementia: WHO guidelines. https://www.who.int/publications/i/item/risk-reduction-of-cognitive-decline-and-dementia
- Livingston, G., et al. (2020). Dementia prevention, intervention, and care: 2020 report of the Lancet Commission. The Lancet. https://pubmed.ncbi.nlm.nih.gov/32738937/
American Psychiatric Association. (2022). Diagnostic and Statistical Manual of Mental Disorders (5th ed., text rev.). DSM-5-TR.
