There is no single risk factor that determines whether you’ll fall. Falls result from a combination of physical, environmental, and behavioral factors that stack on top of each other. More than one out of four adults aged 65 and older falls each year, and about 37% of those who fall sustain an injury requiring medical treatment or activity restriction. Understanding which risk factors apply to you is the most practical step toward prevention.
Age and Previous Falls
Age itself is a leading risk factor, largely because it brings gradual declines in muscle strength, reaction time, and sensory sharpness. But among all predictors, having already fallen once is one of the strongest. A prior fall changes your gait patterns, shakes your confidence, and often signals underlying problems with balance or strength that haven’t been addressed. If you’ve fallen in the past year, your odds of falling again are significantly higher than someone who hasn’t, even if you weren’t injured the first time.
Chronic Health Conditions
Several medical conditions directly interfere with your ability to stay upright. Arthritis limits joint mobility and causes pain that alters how you walk. Parkinson’s disease affects both movement control and posture. Diabetes can damage the nerves in your feet (a condition called peripheral neuropathy), reducing your ability to feel the ground beneath you. Stroke survivors often have weakness on one side of the body. Even incontinence plays a role: rushing to the bathroom, especially at night, leads to hurried movement in low-light conditions.
Postural hypotension, a sudden drop in blood pressure when you stand up, causes lightheadedness that can send you to the floor before you even realize what’s happening. This is common in older adults and is made worse by dehydration and certain medications.
How Medications Raise Your Risk
Taking four or more medications, regardless of type, is an independent risk factor for falls. But certain drug classes are especially problematic. Sedatives and sleep aids slow your reflexes and cloud your alertness. Blood pressure medications can cause dizziness when you change positions. Antidepressants and anti-anxiety medications affect balance and coordination. The risk compounds: each additional medication you take adds another layer of potential side effects that can interact in unpredictable ways.
If you take multiple prescriptions and have noticed unsteadiness, a medication review with your pharmacist or prescriber can identify drugs that could be adjusted or replaced.
Vision and Hearing Problems
Your eyes do far more than help you spot obstacles. Vision allows you to judge depth, gauge the height of a step, and detect changes in floor surfaces. Conditions like cataracts, glaucoma, and macular degeneration degrade these abilities gradually, so you may not notice the loss until a misstep catches you off guard. Bifocal and varifocal glasses add another layer of risk: looking through the wrong part of the lens can make objects appear closer than they are, which is particularly dangerous on stairs and curbs.
Hearing loss contributes in less obvious ways. Your inner ear plays a central role in balance, and damage to the hearing system can disrupt that mechanism. Poor hearing also reduces your awareness of environmental cues, like a dog running up behind you or a car approaching in a parking lot. Together, vision and hearing impairments strip away the sensory information your brain relies on to keep you stable.
Cognitive Decline and Dementia
The connection between thinking ability and fall risk is stronger than most people expect. Executive function, the set of mental processes responsible for planning, problem-solving, and paying attention, has the strongest association with falls among all cognitive domains. When executive function declines, you lose the ability to do two things at once safely, like walking while carrying a conversation or navigating a hallway while scanning for obstacles.
People with dementia also misjudge their own physical abilities. Research from the Cognitive Decline Partnership Centre found that an inaccuracy between how far someone thinks they can reach and how far they can actually reach is an independent fall risk factor, even after accounting for balance problems. Dementia can also distort how the brain processes visual information, making it harder to judge the height of stairs or the edge of a bed.
Vitamin D and Muscle Strength
Vitamin D plays a direct role in muscle function through specific receptors in muscle tissue. When levels are low, physical performance drops and muscle weakness accelerates. A large meta-analysis found that daily vitamin D supplementation at doses of 700 IU or higher reduced fall risk by 13% overall. For adults over 80, the reduction was even more pronounced at 28%.
The benefit was strongest when vitamin D was paired with 500 to 1,200 mg of daily calcium. Without supplemental calcium, vitamin D alone did not significantly reduce falls. Researchers identified a blood level of 60 nmol/L of vitamin D as an important threshold for fall prevention. Many older adults fall well below this level, especially those who spend limited time outdoors or live in northern climates.
Environmental Hazards at Home
Your living space can be one of the most controllable risk factors. The National Institute on Aging identifies several common household dangers:
- Throw rugs and loose carpeting that slide underfoot or catch toes
- Poor lighting in hallways, stairways, and bathrooms, especially without switches at both ends
- Missing grab bars near toilets, tubs, and showers
- Clutter on floors and stairs including books, shoes, electrical cords, and pet toys
- Furniture placement that creates narrow walking paths or forces you to navigate around low coffee tables
- Slippery outdoor walkways from rain, ice, or debris
Standing on chairs or tables to reach high shelves is another frequent cause of falls. A reach stick or a sturdy step stool with a handrail is a simple fix that eliminates a surprisingly common scenario. Pets also deserve mention: cats and small dogs underfoot cause more falls than people typically admit.
Footwear That Works Against You
The CDC’s guidance on footwear for older adults is specific. Heels higher than one inch increase instability, especially narrow heels. Shoes without backs, like clogs or mules, allow the foot to slide out. Worn or smooth soles lose traction on wet or polished floors. Soft, stretched uppers let the foot shift inside the shoe, reducing your control with each step.
The safest shoes have a low, broad heel, a firm sole with good tread, a secure back, and laces or straps that keep the shoe snug to your foot. Walking around the house in socks or stockings on hard floors is one of the riskiest footwear choices of all.
Fear of Falling Creates a Cycle
One of the most underestimated risk factors is psychological. After a fall or a near-miss, many people develop a fear of falling that leads them to restrict their activity. They stop walking outside, avoid stairs, or give up exercises they used to do. The result is muscle loss, reduced flexibility, and declining balance, which makes the next fall more likely, not less. This cycle of fear, inactivity, and deconditioning is well documented and can progress quickly in older adults.
Staying active, even modestly, preserves the strength and coordination that prevent falls. Balance training, tai chi, and simple resistance exercises have all been shown to reduce fall rates.
How Fall Risk Is Assessed
If you’re concerned about your risk level, healthcare providers use several quick screening tests. The Timed Up and Go test asks you to stand from a chair, walk 10 feet, and return to sit down. If it takes 12 seconds or more, you likely have elevated fall risk. The 30-Second Chair Stand Test counts how many times you can rise from a seated position without using your arms. A Four Stage Balance Test measures your ability to hold progressively harder stances, ending with standing on one foot for 10 seconds. A brief cognitive screen is often included as well, since thinking ability is so tightly linked to fall risk.
These tests take just a few minutes and can identify problems before they lead to a serious injury. Given that fewer than half of older adults who fall mention it to their doctor, bringing it up yourself can be the difference between catching a treatable risk factor and waiting for the next fall to happen.