The claim that “dementia starts in the feet” is misleading. Dementia is a group of disorders caused by changes in the brain, not the feet. However, growing research suggests that changes in the way a person walks (their gait) can sometimes appear years before noticeable memory problems. In some cases, these walking changes may be an early sign of underlying brain changes.
Walking is a complex activity that requires coordination between the brain, nerves, muscles, joints, vision, and balance. When these systems begin to decline, changes in walking speed or stability may provide clues about overall brain health.
Why Walking Matters for Brain Health
Walking isn’t just a physical activity—it also requires your brain to:
- Maintain balance
- Coordinate muscle movements
- Process visual information
- Make quick decisions
- Navigate obstacles
- Divide attention between walking and thinking
Because so many brain regions are involved, subtle changes in walking may reflect changes in brain function.
What Research Has Found
Several studies have found that older adults who develop dementia may show changes in their walking years before memory symptoms become obvious. These changes don’t mean someone will definitely develop dementia, but they may signal the need for further evaluation.
Researchers have observed that people at higher risk of cognitive decline may have:
- Slower walking speed
- Shorter steps
- Difficulty maintaining balance
- Uneven walking patterns
- Trouble walking while talking or performing another mental task
These findings suggest that gait changes can be one piece of the puzzle, alongside memory tests and medical evaluations.
Possible Early Walking Changes
1. Walking More Slowly
A noticeable decrease in walking speed has been associated with an increased risk of cognitive decline in some studies.
2. Poor Balance
Frequent stumbling or feeling unsteady while walking may indicate changes in the brain or nervous system, though many other conditions can also cause balance problems.
3. Shorter Steps
People may begin taking smaller, slower steps without realizing it.
4. Difficulty Walking and Talking
If someone struggles to hold a conversation while walking, it may suggest that the brain is having more difficulty handling two tasks at once.
5. Frequent Falls
Repeated falls should always be evaluated by a healthcare professional, especially in older adults. Falls can have many causes, including medication side effects, vision problems, or neurological conditions.
Other Early Signs of Dementia
Walking changes alone do not diagnose dementia. More common symptoms include:
- Memory loss that disrupts daily life
- Difficulty planning or solving problems
- Confusion about time or place
- Trouble finding the right words
- Misplacing items frequently
- Poor judgment
- Changes in mood or personality
- Difficulty completing familiar tasks
Conditions That Can Also Affect Walking
Many conditions other than dementia can change the way someone walks, including:
- Arthritis
- Parkinson’s disease
- Stroke
- Peripheral neuropathy
- Inner ear disorders
- Vision problems
- Muscle weakness
- Vitamin B12 deficiency
- Medication side effects
Because there are many possible causes, a medical evaluation is important if walking changes develop.
Can Walking Help Protect the Brain?
Regular physical activity, including walking, is associated with better overall brain health. Studies suggest that exercise may help:
- Improve blood flow to the brain
- Support memory and learning
- Reduce inflammation
- Improve mood
- Lower the risk of heart disease, diabetes, and stroke, which are risk factors for dementia
While walking cannot guarantee prevention of dementia, staying physically active is considered an important part of a healthy lifestyle.
Tips to Support Cognitive Health
Healthy habits that may help reduce the risk of cognitive decline include:
- Walking or exercising regularly
- Eating a balanced diet rich in fruits, vegetables, whole grains, and healthy fats
- Managing blood pressure, cholesterol, and diabetes
- Getting enough quality sleep
- Staying socially connected
- Challenging your brain with reading, puzzles, or learning new skills
- Avoiding smoking and limiting alcohol
When to See a Doctor
Talk to a healthcare provider if you or a loved one experiences:
- A sudden or persistent change in walking
- Frequent falls
- Balance problems
- Memory loss affecting daily activities
- Confusion or personality changes
- Difficulty performing familiar tasks
Early evaluation can help identify treatable causes and, if dementia is present, allow earlier treatment and planning.
The Bottom Line
The statement that “dementia starts in the feet” is not medically accurate. Dementia begins with changes in the brain, not the feet. However, changes in walking or balance may sometimes be among the earliest noticeable signs of cognitive decline because walking depends on healthy brain function. If walking changes are accompanied by memory or thinking problems, it’s important to seek medical evaluation rather than assume they are a normal part of aging.