Loss of independence doesn’t usually happen all at once. It happens quietly — through small changes in mobility, confidence, environment, and expectations. In this special written edition of Geezers Gadgets and Gizmos, host Garrison Leykam interviews Dr. Thomas Gill, one of the nation’s leading experts on aging, mobility, and functional decline, to unpack how independence is lost and what actually helps older adults stay mobile.
How Independence Is Lost in Older Adults
One of the most powerful themes in this conversation is that independence is rarely “taken away.” Instead, it is often eroded over time. Dr. Gill explains how independence can be affected by:
- Gradual declines in balance and strength
- Fear of falling and loss of confidence
- Environmental barriers in the home or community
- Overprotection that unintentionally limits activity
- Medical events that disrupt routine movement
These factors compound — and once mobility shrinks, independence often follows. Understanding how independence is lost is the first step toward preventing it.
What Actually Helps Older Adults Stay Mobile
The second half of the conversation focuses on what actually works — not wishful thinking, not extreme fitness regimens, but practical, evidence-based approaches that support mobility. Key insights include:
- Mobility is adaptable, even later in life
- Staying mobile often means modifying environments, not just bodies
- Small, consistent movement matters more than intensity
- Confidence and mobility are tightly linked
- Independence exists on a spectrum — not an on/off switch
This reframing is critical to understanding what helps older adults stay mobile in real life.
Meet the Voices Behind the Conversation
Garrison Leykam — Host
Garrison Leykam is the creator and host of Geezers Gadgets and Gizmos, a platform focused on helping older adults live safer, smarter, and more independent lives. Through expert interviews, product reviews, and real-world testing, he explores how aging well is less about fighting time and more about working with it.
Dr. Thomas Gill — Special Guest
Dr. Thomas Gill is a nationally recognized physician-scientist in geriatric medicine whose research has shaped how the medical community understands functional decline, disability, and recovery in older adults. His work emphasizes resilience, prevention, and practical strategies that help people remain mobile and independent.
Alyson Grisham, Co-Producer of Geezers, Gadgets and Gizmos
Alyson is a filmmaker and digital content producer who helps shape engaging, accessible stories focused on aging, independence, and quality of life.
Why This Conversation Matters
Conversations about aging often focus on decline. This one focuses on agency. By understanding how independence is lost and what actually helps older adults stay mobile, readers gain a clearer, more hopeful picture of aging — one grounded in realism, research, and respect. It also reinforces the core mission of Geezers Gadgets and Gizmos: helping people stay engaged, mobile, and independent for as long as possible.
THE INTERVIEW
Read the full interview transcript below or watch the podcast HERE
Host: Garrison Leykam
Welcome to Geezers, Gadgets and Gizmos where we are focused on aging, independence, mobility, and quality of life. I’m your host, Garrison Leykam, and my very special guest today is Dr. Thomas Gill, Professor of Medicine and Geriatric Medicine at Yale University. He’s one of the leading experts on aging, mobility, and the prevention of disability in older adults. His research has fundamentally shaped how we understand functional decline and independence as we age.
Dr. Gill, thank you so much for joining us today.
Special Guest: Dr. Thomas Gill
My pleasure.
Host: Garrison Leykam
When people think about aging today, what do you think they most misunderstand?
Special Guest: Dr. Thomas Gill
It depends on the population you’re referring to. We start aging from the time we’re born — really from conception — until the time we die. So aging is a natural part of life.
What many people don’t appreciate is that there are behaviors that can slow the rate of aging. Healthy behaviors can make a real difference. It’s not guaranteed that individuals will experience decline in functional status as they age if they adhere to healthy behaviors.
Host: Garrison Leykam
We so often hear the term independence. How do you define independence in older adulthood?
Special Guest: Dr. Thomas Gill
The best explanation is that when a person is independent, they’re not relying on others to carry out important activities of daily living. These fall into different categories.
There are basic or essential activities of daily living, such as transferring in and out of a chair, walking across the room, getting dressed or undressed, getting to and from the toilet, and bathing.
Then there are activities that go beyond the household, such as getting in and out of the house, driving, walking up a flight of stairs, or lifting and carrying heavy objects.
Finally, there are instrumental activities of daily living, which are higher-level activities such as managing finances and grocery shopping. A person can be independent in one set of activities but require assistance in another. If someone doesn’t require assistance in any of these activities, they would be considered fully independent.
Host: Garrison Leykam
In your research, where does loss of independence usually begin? Is it gradual? Is it sudden? Are there early warning signs?
Special Guest: Dr. Thomas Gill
There tends to be a decline in what we call reserve capacity. That could be physical reserve, cognitive reserve, or a combination of the two. Some would also argue there’s emotional reserve.
We reach our peak physical and cognitive capacity earlier in life — physically, typically in the mid-20s — and then there’s a gradual decline. But aging alone usually does not cause loss of independence, because people generally stay above the threshold for dependence well into very old age.
Our work has shown that the main cause of loss of independence is having something bad happen — usually an illness or injury, with the most potent precipitant being hospitalization. Falls that lead to hospitalization or serious illness requiring intensive care are major “hits.”
People with lower reserve capacity are especially susceptible. A more robust person may recover independence quickly, while someone with lower reserve may experience a marked decline and prolonged or incomplete recovery.
Host: Garrison Leykam
Do you see a cascading psychological effect when people start limiting themselves after these events?
Special Guest: Dr. Thomas Gill
Yes, absolutely. For example, people who fall — even without serious injury — may cut back on activities out of fear. About a third of adults over 65 experience at least one fall per year, and about a third of those falls result in serious injury.
Restricting activity to prevent falls actually isn’t supported by evidence. Physical inactivity is itself a risk factor for falls. Staying active preserves muscle strength, endurance, and balance.
There’s also a psychological concept called self-efficacy — how confident someone feels in their ability to perform specific activities.
Host: Garrison Leykam
Can that fear become so psychologically limiting that people essentially shrink their world?
Special Guest: Dr. Thomas Gill
Yes. There’s a related concept called fear of falling. Some people become so fearful that they don’t want to leave their home. Their world shrinks.
There’s also the idea of life space — how large your world is. Are you confined to one room, your house, your block, or your neighborhood? For many older adults, life space shrinks with age, partly due to fear of falling and reduced self-efficacy. Anxiety or depression can also play a role, and these are often treatable.
Host: Garrison Leykam
Support systems matter here too, don’t they?
Special Guest: Dr. Thomas Gill
Very much so. Support can come from a spouse, children, neighbors, or friends. Today, families often live farther apart, but technology like Zoom helps people stay connected.
We also see neighbors stepping in — even something as simple as shoveling snow for an older neighbor can make a huge difference. Social capital is incredibly important in preserving independence.
Host: Garrison Leykam
People often hear “you’ve got to stay active.” Is it more about consistency or intensity?
Special Guest: Dr. Thomas Gill
Physical activity is probably the single most important health behavior for aging. We often avoid the word exercise because many older adults think it’s only for younger people.
Walking is one of the most beneficial activities — it’s free, requires no special equipment, and is widely accessible. The guideline is 150 minutes per week, but that can be broken up in many ways.
Physical activity reduces fall risk, supports mobility, and may even influence cancer prevention or progression. If there were a pill that did what physical activity does, it would be enormously popular.
Host: Garrison Leykam
Chronic pain is such a barrier for many seniors.
Special Guest: Dr. Thomas Gill
Pain is difficult, especially orthopedic pain. Evaluation, physical therapy, and mobility aids like walkers or canes can make activity possible. People should start low and go slow.
Pain management often requires partnership with clinicians and may include physical therapy modalities like heat, cold, or ultrasound.
Host: Garrison Leykam
I recently had a full knee replacement, and I’m amazed how many people don’t pursue treatments that could help.
Special Guest: Dr. Thomas Gill
We do see that. Years ago, people over 65 were often considered “too old” for procedures like knee replacement. That’s changed. We now focus on biological age rather than chronological age.
Two people of the same age can be vastly different in reserve capacity. Medical decisions should be based on fitness, not age alone.
Host: Garrison Leykam
Have any of your research findings surprised you?
Special Guest: Dr. Thomas Gill
Yes. One of our early surprising findings was that most people who lose independence after hospitalization regain it within six months. Recovery rates were far higher than previously reported.
We also learned that dependence isn’t a one-way trajectory. People often move in and out of dependence, and recovery is possible — which gives hope to patients, families, and clinicians.
Host: Garrison Leykam
That’s incredibly encouraging.
Special Guest: Dr. Thomas Gill
There are preventive strategies at every step — staying active, minimizing time in bed during hospitalization, using rehabilitation services, and working with therapists after discharge. Recovery requires effort, but it’s achievable.
Host: Garrison Leykam
You project such optimism about aging.
Special Guest: Dr. Thomas Gill
Thank you. Our work shows that independence matters most to older adults. They want to avoid being a burden. As clinicians, our role is to partner with them to preserve what matters most.
Host: Garrison Leykam
Does the healthcare system fall short in preserving independence?
Special Guest: Dr. Thomas Gill
There’s room for improvement, but things are better than they used to be. Initiatives like Age-Friendly Health Systems, launched by the Hartford Foundation, have improved hospital care for older adults.
Medicare still struggles with preventive functional care, but progress is being made.
Host: Garrison Leykam
When should people start thinking about preserving independence?
Special Guest: Dr. Thomas Gill
It’s never too late — but earlier is better. Physical activity, nutrition, smoking cessation, managing chronic conditions, good sleep, and maintaining muscle mass all matter across the lifespan.
Host: Garrison Leykam
In closing, what’s the one message you want every older adult and caregiver to understand?
Special Guest: Dr. Thomas Gill
Functional decline and disability are not inevitable. They’re often preventable, and recovery is possible. That’s the message I want people to hear.
Host: Garrison Leykam
Dr. Gill, thank you for your time, your work, and your inspiration.
Special Guest: Dr. Thomas Gill
Thank you. I’ve enjoyed our discussion and hope it resonates with your audience.