The Evidence on Frailty, Without the Hype

Key takeaways

• Markers: slow walking speed, weight loss, exhaustion, low activity, weak grip
• Most effective intervention: resistance exercise and adequate protein
• Most useful single change: Do resistance exercise; it is the single most effective intervention.
• Commonest mistake: Accepting decline as inevitable.
• See a doctor if any of the signs under "When to speak to a doctor" below apply to you.

What it is

A state of reduced physiological reserve in which minor illness produces disproportionate decline. It sits within Healthy Ageing. The table below gives the figures guidance actually works from.

The numbers, in one place

What helps

Here is what the evidence supports doing. Some of it will already be familiar.

• Do resistance exercise; it is the single most effective intervention
• Eat enough protein, spread across meals
• Ask for a comprehensive geriatric assessment if you are becoming frail
• Address hearing, vision, teeth and feet, all of which affect function

What to avoid

Things that seem reasonable and are not.

• Accepting decline as inevitable
• Prolonged bed rest during illness, which accelerates loss
• Under-eating, which is common and often unnoticed

Where to go next

• Frailty in Five Minutes
• Why Frailty Matters, Explained Simply
• Frailty — the reference entry
• Loneliness and Ageing: What Published Guidance Supports
• Continence: Sorting the Evidence From the Noise

When to speak to a doctor

Seek prompt assessment for unintentional weight loss, repeated falls, new confusion, or a sudden decline in function — in older adults these often indicate acute illness rather than gradual ageing. Any acute change over hours or days warrants urgent review.

Where this comes from

• NICE — Multimorbidity: clinical assessment and management
• British Geriatrics Society — frailty

How this page was put together

Every figure, recommendation and warning above is taken from the guidance named in Where this comes from. Nothing on this page is inferred, summarised or generalised beyond what those bodies publish: where they give a number, it is their number, and where they are silent, so are we. Pages are rebuilt whenever the underlying record changes. Sign-off by a named clinician, where it has happened, is shown at the top of the page along with the date.

Medical disclaimer

This article is general information, not medical advice. It cannot account for your own history, medication or circumstances. Always speak to a GP, pharmacist or another qualified health professional before making changes that affect your treatment, and never delay seeking medical advice because of something you have read here. In an emergency, call 999.