Skip to content

The year is drawing to a close and, if all goes to plan, December 31st will be your very last day as a smoker.

The moment you stub out your final cigarette, signals the start of your healthier and wealthier smoke-free life

Despite this, you’re probably feeling nervous at the prospect of giving up, worried about cravings and coping with life’s tricky moments without a cigarette in your hand.

However, it’s important to remember that the benefits of giving up smoking vastly outweigh any concerns you have about quitting.  And those benefits kick in minutes after you take your final puff.

]Here’s a reminder of what happens to your body when you stop smoking:

Within  20 minutes of stopping smoking your health rate returns to normal levels.

After eight hours, the nicotine and carbon monoxide levels in your body will reduce by more than half and your oxygen levels will be back to normal levels

48 hours later the carbon monoxide  in your body will have been eliminated completely.  Your lungs then start to clear out mucus and other smoking debris. There will now be no nicotine in your body and you will have improved taste and smell.

Your breathing will have returned to normal within 72 hours and your energy levels will increase.

Blood circulation will improve within 2 to 12 weeks and after 3 to 9 months, coughs, any wheezing and breathing problems you had a result of smoking will improve.

And the benefits of quitting will continue into the next decade of your life and beyond…..

  • Within a year your risk of heart disease will be about half that of a person who is still smoking.
  • After ten years your risk of developing lung cancer drops to half that of a person still smoking.
  • Once 15 years have passed, your risk of a heart attack is the same as somebody who never smokes.

If you want to stop smoking Help Me Quit is run by NHS Wales and will help you to find the stop smoking service that best suits you. Contact them on 0800 085 2219 or visit www.helpmequit.wales.

Share this story

Writing about this issue?

Journalists can use the ASH Wales Media Centre for Wales-specific data, background and spokesperson requests.

More from ASH Wales

Dua Lipa holding a cigarette outside a dark-fronted building, with a No Smoking sign visible above her.

Who made smoking fashionable again? | Nicfluenced

🚬 Smoking in front of a ‘No Smoking’ sign? Dua Lipa's March 2025 photos are a striking example of how cigarettes appear in celebrity culture. ASH Wales' research found no identified tobacco partnership. So when does smoking become part of the aesthetic — and why does that matter?
Cover of the ASH Wales Public attitudes to tobacco and vape regulation in Wales 2026 report

New Welsh report highlights confusion over vaping harms as duty begins

More than half of Welsh adults who have heard of vapes wrongly believe vaping is as harmful as smoking or worse, new ASH Wales YouGov findings show.
Illustration of modern vaping devices, e-liquid and pound symbols representing the new vaping duty

New vaping duty comes into force across Wales today

A new UK excise duty on vaping products starts today, 1 October 2026. Here is what the £2.20 per 10ml duty, new vape duty stamps and higher tobacco duty mean in Wales.