Smoking and brain health
Quitting smoking is one of the best things you can do to support brain health.
Protect your brain
Most people know smoking harms the lungs and heart. But many Londoners don’t realise it also harms the brain, the organ that powers everything you do, from thinking and planning to connecting with the people you love.
You’re 3x as likely to quit successfully with the right support and nicotine replacement products:
Get help to quitSmoking increases the risk of dementia, particularly Alzheimer’s disease and vascular dementia. The good news is that quitting smoking at any age reduces the risk of dementia, even if you’ve smoked for many years.
By stopping smoking with our support, you can help protect your memory, your independence and your future.
Why brain health matters
Dementia affects how we think, remember, plan and communicate. According to Alzheimer’s Research UK’s Dementia Attitudes Monitor, half of UK adults agree with the statement ‘Dementia is the health condition I fear developing most in the future.’
Dementia isn’t an inevitable part of getting older. In fact, research suggests nearly half (45%) of dementia cases worldwide could be prevented or delayed by addressing 14 modifiable risk factors. Smoking is one of the biggest ones to tackle.
NHS Every Mind Matters says that looking after your brain helps your overall wellbeing, keeps your thinking clear and improves your quality of life in the long run.
Quitting smoking is one of the best steps you can take to support a healthier brain. We can help you succeed in a way that works for you.
How smoking affects the brain
Smoking harms the brain in several ways:
- Damages blood vessels, reducing oxygen and nutrients reaching the brain
- Increases inflammation, which accelerates brain ageing
- Raises the risk of stroke, a major cause of vascular dementia
- Speeds up cognitive decline, affecting memory and concentration
Is it too late to quit?
Over time, these changes increase the risk of dementia. But the brain is resilient. When you stop smoking, blood flow improves, inflammation reduces and your dementia risk begins to fall.

Take the Think Brain Health Check-in from Alzheimer’s Research UK
Smoking is one way to look after your brain, but did you know there are other steps you can take to look after your brain health?
Take the Think Brain Health Check-in and receive a personalised report exploring your brain healthy habits.
Take the Think Brain Health Check-in
Free support to help you quit
Find a stop smoking service in your borough
Access free stop smoking support from your local London borough.
Get 24/7 support and free quit products to your door
The Smoke Free App is now available to you if you smoke and live in London
Find out about Prescribed Medications
Find out about the different medications available on prescription that can help you to stop smoking
What is the Smoke Free App?
All Londoners now have access to the Smoke Free App. Get unlimited on-demand support from specialist Stop Smoking Advisors, 24ha day. Track your progress, get daily motivation, and use evidence-based tools. You can also get up to 12 weeks of free vape and/or nicotine replacement products such as patches, gum, lozenges, sprays, or a vape free, to your door.
Find your nearest stop smoking service here.What happens at a local Stop Smoking Service?
You don’t have to do this alone. London offers free, friendly, and confidential stop-smoking support. Specialist advisers can help you build a personalised quit plan, get free or low cost nicotine replacement products and manage cravings and withdrawal. People who use stop-smoking services are three times more likely to quit than going it alone.
Find your nearest stop smoking service here.