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Understanding and Reducing the Harm of COVID-19 Isolation for People with Dementia

Social isolation during COVID-19 can speed up decline in people with dementia, but you can take concrete steps to protect their health and well-being. This article explains why isolation is so harmful—from increased infection risk to worsening dementia symptoms—and gives you real-world strategies to stay connected safely. You are not alone in this, and small, consistent actions can make a big difference.

Key points

  • Social isolation can speed up cognitive and physical decline in dementia—one-third to one-half of people show significant negative changes.
  • People with dementia have a higher risk of severe COVID-19 and death, so protection is vital, but balance it with connection.
  • Delirium is a medical emergency—sudden confusion, agitation, or sleepiness can signal infection or hypoxia.
  • Simple, consistent routines (daily calls, window visits, sensory kits) can reduce anxiety and maintain function.
  • Caregivers must care for themselves too—burnout and guilt are real, and support groups help.
  • Always consult a doctor before making medication or medical decisions—this guide is for support, not clinical advice.

Why Isolation Is Especially Dangerous for Dementia

People with dementia were already at higher risk for severe COVID-19 outcomes. Studies show that older adults with dementia have a 60% higher risk of COVID-19 infection and a significantly higher risk of hospitalization and death compared to those without dementia (source passages 1, 2, 3). This is not just because of age—dementia itself is an independent risk factor for severe illness (source 4). The pandemic forced many care facilities and families into strict isolation to protect residents, but this created a new crisis: the harm of being alone.

When a person with dementia is isolated—cut off from family visits, communal dining, and normal routines—their cognitive and physical abilities can drop dramatically. Research shows that one-third to one-half of people with dementia experience significant negative changes in function during prolonged social isolation (source 21). This is partly due to 'disuse atrophy'—the brain and body losing skills they no longer practice—and partly due to depression, anxiety, and loneliness that isolation triggers (source 21). The very measures meant to protect them can speed up the dementia process.

The Hidden Toll: Loneliness, Depression, and Physical Decline

Loneliness and social isolation are not the same thing, but both are harmful. Social isolation—being physically separated from others—is linked to a 50% increased risk of dementia, a 29% increased risk of heart disease, and a 32% increased risk of stroke (source 18). For someone already living with dementia, isolation can worsen existing symptoms like confusion, agitation, and memory loss. It also increases the risk of falls, depression, and even suicide (source 18, 25).

In care facilities, the lockdown often meant no communal dining, no group activities, and no physical contact with loved ones. One expert noted that even sitting six feet apart with separate tables was not allowed—people could not even see one another (source 14). This kind of separation, especially when a person cannot understand why it is happening, can lead to profound grief, anxiety, and a sense of abandonment. The person may withdraw further, stop eating, or become more confused.

Delirium: A Serious Risk During COVID-19

Delirium—a sudden, severe confusion—is another major risk for people with dementia who get COVID-19. Studies found that delirium was present on hospital admission in 28% of adults 65 and older with COVID-19, and among ICU patients, rates reached 65–80% (source 5, 10). Delirium in COVID-19 can be a warning sign of hypoxia or organ failure, and it triples the risk of death (source 12). For a person with dementia, delirium can look like a sudden worsening of their usual confusion, but it is a medical emergency. Isolation can mask early signs of delirium because no one is there to notice the change.

General caregiving information, not medical advice. Check medications and major care changes with your clinician.

Step-by-step

  1. Schedule a daily 5–10 minute video call at the same time using a tablet on a stand, with simple warm language like 'Hi Mom, it's me. I love you. Tell me one thing you did today.'

  2. Post a daily wall schedule with pictures and times for meals, a walk, a show, and your call to reduce anxiety through structure.

  3. Do window visits when in-person isn't allowed: stand outside, hold big-letter signs like 'I LOVE YOU', wave, and blow kisses.

  4. Send a sensory care package (a scarf with your scent, a playlist from their youth, a labeled photo album, textured objects) and ask staff to use items during calls.

  5. During calls, invite shared activity like folding laundry together over video or singing a known song (e.g., 'You Are My Sunshine').

  6. Request consistent staff assignments in facilities, and remind caregivers to say their name slowly with eye contact at each interaction.

  7. Watch for sudden depression or delirium signs (new confusion, excessive sleep, food refusal, unusual agitation) and ask the doctor if it could be infection, medication, or delirium.

  8. Join a virtual support group, talk to a friend or therapist about your grief, and acknowledge you are doing your best.

What not to do

  • Don't force long video calls when the person becomes agitated; keep it short, let them walk away, and avoid making future calls threatening.

  • Don't assume they understand why they are isolated; use simple reassuring language like 'We are staying safe today' instead of 'because of the virus'.

  • Don't stop physical activity—ensure staff help them walk to the bathroom or do seated exercises to prevent muscle loss and cognitive decline.

  • Don't dismiss caregiver guilt or exhaustion as weakness; name it and give yourself permission to take a break.

  • Don't rely on phone calls alone if they have hearing loss—use video calls with captions, write key words on a whiteboard, and speak clearly not loudly.

Practical tools

  • Hello and Goodbye Script

    Start each interaction with your name and relationship, and end with a clear goodbye naming when you'll return, reducing confusion and anxiety.

  • Sensory Connection Kit

    A small bag with one item per sense: lavender sachet, soft fleece square, playlist of three songs from their 20s, favorite photo, dark chocolate; use one per call to spark memory and calm.

  • Daily Routine Poster

    Large laminated schedule with pictures for breakfast, your call, lunch, walk, and music time, placed at eye level for a sense of control.

  • Caregiver Check-In Log

    Notebook or app recording daily mood, appetite, sleep, new confusion, and activities; share trends with the doctor to detect depression or delirium early.

  • Music and Movement Break

    Set a 5-minute timer, play a song from their youth, invite tapping, clapping, swaying, or slow-dancing to lift mood and circulation.

  • When to Call the Doctor Red Flags Card

    Wallet-sized list of urgent symptoms (sudden confusion, new agitation, refusing food or fluids, falling, extreme sleepiness) plus doctor’s number for quick action.

Does mild COVID-19 increase risk of depression or anxiety?

Yes, mild COVID-19 can increase the risk of depression and anxiety in people with dementia due to the stress of illness and forced isolation. Keep a close watch for sudden mood changes, and try to offer gentle reassurance through daily phone calls or short window visits to maintain connection.

Discuss with your clinician

Ask the doctor: 'What are the specific signs of delirium I should watch for in my loved one with dementia? How is it different from their usual confusion?'

Ask the doctor: 'Are there any medications that could help with anxiety or depression caused by isolation? What are the risks and benefits?'

Ask the doctor: 'Given my loved one's age and dementia, what is their risk of severe COVID-19? Should they get the latest vaccine or booster?'

Ask the doctor: 'If my loved one gets COVID-19, what symptoms should prompt me to go to the hospital? What is their care plan?'

Ask the doctor: 'How can I safely increase physical activity for my loved one during isolation? Are there any exercises they should avoid?'

Related guides

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