A fall can feel like simple bad luck — a trip on a rug, a missed step. But falls are rarely about one thing. They usually happen when several parts of the body, each a little weaker than it once was, line up at the wrong moment. The encouraging side of that is this: because a fall has many causes, it also has many handles — and most of them are within your control.
Around one in three people over 65, and half of those over 80, fall at least once a year. Falls are the leading reason older people are admitted to hospital for injury. Yet falling is not an inevitable part of getting older — and it is one of the most preventable. The key is to understand that staying upright depends on a whole team of body systems working together. This guide walks through each one, then pulls them into a plan.
Think of staying balanced as a constant, automatic conversation between your eyes (seeing the hazard), your inner ears (sensing which way is up), your muscles and nerves (making the correction), and your brain (coordinating it all in a split second). Age can quietly turn down the volume on each. Any one alone, you’d cope with. Several together is what causes a fall — which is exactly why looking at the whole picture works better than fixing any single part.
Vision lets you spot the kerb, judge the step and find your balance in space. Reduced sharpness, and especially poor contrast (telling a step from its shadow in dim light), raise fall risk — in one large study, reduced vision went with about a 20% higher fall rate. Two practical points often surprise people: varifocal or bifocal glasses can blur the ground and stairs just where you look to place your feet, so single-vision distance glasses are safer for walking; and treating cataracts improves contrast and tends to lower falls. Regular eye tests and good lighting matter more than most realise.
Deep in the inner ear sits your balance sensor, which tells your brain how your head is moving. It fades with age — quietly, in around half of older adults — and when it does, you lean more heavily on eyes and feet to stay steady. Hearing loss adds to fall risk too, and the two together are worse than either alone. Dizziness or unsteadiness is worth reporting rather than accepting; specific balance-retraining (vestibular) exercises can help when the inner ear is the problem, and a hearing check belongs in any falls review.
Balance isn’t one sense — it’s your brain blending vision, inner-ear signals and foot sensation into constant tiny corrections. Underneath sits muscle, which carries those corrections out. With age we lose muscle, and lose power (fast, forceful movement) even quicker — and power is exactly what the rapid saving step after a stumble needs. The good news is that both balance and muscle respond strongly to the right training, covered in the plan below.
The nervous system coordinates everything, fast. Slower reactions, nerve damage in the feet (often from diabetes), and — very commonly — certain medicines all raise risk. Sedatives, sleeping tablets, some antidepressants, and blood-pressure drugs that make you light-headed on standing are frequent, fixable culprits, especially when several are taken together. A medication review is one of the most effective single steps, so it’s always worth asking whether anything you take could be adding to the risk.
Bones don’t make you fall, but they decide what happens when you do — a stumble versus a broken hip. Falls and fragility fractures are really one problem, which is why a falls plan and a bone-health plan belong together. Helpfully, the strength-and-balance exercise that prevents falls is much the same training that strengthens bone — one effort protecting two systems. (If you’ve already had a fracture, see our guide on what to do next.)
Food fuels every system above. Protein is the raw material for muscle, and older adults generally need a bit more than younger ones because ageing muscle uses it less efficiently. Vitamin D and calcium support bone and muscle — but with an important caveat that mirrors the wider evidence: correcting a genuine deficiency with modest daily doses helps, while taking high doses when your levels are already fine adds no benefit and may even increase falls. More is not better. There’s also growing interest in the gut microbiome’s role in keeping muscle healthy; the science is early and unproven, but it’s another reason a varied, fibre-rich diet is worth eating.
Genes do play a part — but in a reassuring way. Your bone density and muscle strength are quite strongly inherited, so a family history of osteoporosis or fractures means it’s worth starting the protective steps earlier and more diligently. But whether you actually fall turns out to be barely genetic at all — it is overwhelmingly shaped by the things you can change. Your family history is a prompt to act sooner, never a sentence.
Here is the whole team on a single view — how each system can raise your risk, and what helps.
| System | How it can raise fall risk | What helps |
|---|---|---|
| Eyes | Poor acuity, low contrast sensitivity, cataracts and glaucoma all make hazards harder to see. Varifocal glasses can blur the floor and stairs. | Regular eye tests; treat cataracts; single-vision glasses for walking; good lighting. |
| Ears & balance organs | The inner-ear balance sensor fades with age (about half of older adults), often silently. Hearing loss adds to the risk. | Hearing checks; tell your doctor about dizziness; vestibular (balance) rehab exercises. |
| Balance & gait | Vision, inner ear and foot sensation are combined by the brain to keep you upright — the blend degrades with age. | Balance-challenging exercise is the single most effective step (see below). |
| Muscle | Muscle and — crucially — muscle power decline with age (sarcopenia), so the saving step after a stumble is slower. | Progressive strength and power training; enough protein in the diet. |
| Nerves & medicines | Slowed reactions, neuropathy, and especially sedating or blood-pressure medicines raise risk. | Medication review; check for dizziness on standing; manage other conditions. |
| Bones | Bones don’t cause the fall, but they decide whether it becomes a fracture. | Bone-health assessment; bone-protecting treatment if needed; weight-bearing exercise. |
| Diet & gut | Too little protein starves muscle; deficiency — or excess — of vitamin D both matter. | Adequate protein; varied, fibre-rich diet; correct vitamin D deficiency (modest doses). |
| Inherited risk | Genes shape your bone density and muscle strength — but barely affect whether you actually fall. | A family history is a reason to start the steps above earlier, not a fixed fate. |
Two things stand out from the research. First, the most powerful single step is the right kind of exercise. Second, because risk comes from several systems at once, the best results come from a check of the whole picture — not one fix.
A fall is rarely bad luck and almost never destiny. It usually happens when several fixable things — vision, balance, muscle, medicines, footing — line up at once. That’s the hopeful part: most of what raises your risk is within your control. Balance-and-strength exercise is the single most effective step, and a falls assessment finds your particular combination so the plan fits you. It’s worth starting before a fall, not after.
This piece is an appraisal for educational and communication purposes produced by the Education Directorate of IIMHE. It is not a substitute for individual clinical advice. It reflects current UK practice (NICE NG249, 2025; World Falls Guidelines) and evidence on exercise (Cochrane 2019), vision, vestibular and sensory function, sarcopenia and nutrition, vitamin D dosing, the gut–muscle axis, and the genetics of falls and bone. Figures are drawn from peer-reviewed studies current to 2026.
2nd February 2026 @ 20:00 GMT
Nutrition and musculoskeletal health
Given by: Dr Kimberley Zambito, Orthopaedic Consultant
Hosted by: Dr Nick Birch
Throughout 2026 and beyond, IIMHE (the International Institute of Musculoskeletal Health Education), in partnership with OsteoscanUK, will host a series of engaging educational webinars, open to anyone interested in bone and musculoskeletal health.
