Oral health: teeth, gums and why they matter elsewhere
Reviewed by Dr Namrata Bagaria, MBBS, MPH (Harvard)Last reviewed
Gum disease is common, largely silent, and linked to heart disease and dementia. It is also one of the most neglected parts of ageing well.
Step by step
Step 1: Take gums as seriously as teeth
Bleeding when you brush is not normal and is not something to brush more gently around. Gum disease is common after 60, usually painless until late, and it is the main reason teeth are lost. Bleeding, receding gums, persistent bad breath or loose teeth all warrant a dentist.
Learn more: Anti-inflammatory basicsStep 2: Know why it reaches beyond your mouth
Gum disease is a long-running low-grade infection, and chronic inflammation of that kind is associated with heart disease and with dementia risk. Looking after your gums is not vanity; it is part of the same inflammation story as diet and movement.
Learn more: Dementia: what it is, and what lowers the riskStep 3: Deal with a dry mouth, which most people ignore
Many common medicines reduce saliva, and saliva is what protects teeth. A dry mouth means more decay, sore gums and difficulty with dentures. Sip water through the day, and ask your doctor or pharmacist whether anything you take is the cause.
Learn more: Nutrition basicsStep 4: Make sure you can still chew what you need to eat
This is the part that links back to everything else. Painful teeth or poorly fitting dentures quietly push people towards soft, sweet, low-protein food, and that costs muscle. If eating has become difficult, that is a reason to see a dentist rather than to change what you eat.
Learn more: Muscle as your body's engine, not just for moving
All topics in this guide
Other guides you may like
Anti-inflammatory eating: where to start
Eating to support lower inflammation does not mean following a strict diet or giving up everything you enjoy. It is mostly about what you eat regularly and often: more vegetables, fruit, whole grains, beans, nuts and seeds, and less highly processed and sugary food.
Dementia: staying engaged and connected
Practical ways to keep someone with dementia moving, joining in and enjoying company. For families, carers and clubs.
Sources
The guidance on this page draws on the following.
Take care of your teeth and gums(opens in a new tab)
NHS · 2025
Supports: Everyday cleaning, and looking after gums and dentures.
Oral health(opens in a new tab)
World Health Organization · 2025
Supports: Why oral health matters for general health.
