People in Harrow are the least likely to have ever smoked a cigarette - in the whole of the UK.
If you've ever thought Harrovians smell better, live longer and have more cash, their cigarette avoidance could provide the answer.
New data from the NHS shows that in 2016, for the first time ever, a majority of UK adults (58%) said they had never been a smoker.
But there were significant differences around the country, with the figure rising to about 70% in some areas.
Healthy Harrow was top of the tree, with 73.3% of adults saying they had never been a smoker.
In second place was Redbridge in London (72.8%), closely followed by Harrow's neighbouring borough, Brent (72.4%), and South Ribble in north-west England (72.1%).
Other west London boroughs fared well for saying no to lighting up as well, with Hillingdon at 67.4% and Ealing 66.6%, both areas making the top 20 in the UK.
Of major cities outside London, Oxford (67.9%) and Birmingham (67.7%) showed the highest proportion of adults who had never smoked.
One thing such areas have in common is a relatively young adult population - with young people far more likely to have never smoked than older generations.
England has lowest countrywide smoking rates in UK
Across the UK as a whole, 73.8% of those aged 18-24 said they had never smoked, compared to 49.7% of those aged 65 and over.
At the other extreme, Rossendale in Lancashire is the place you are least likely to find an adult who has never been a smoker.
Only 42.3% of adults put themselves in that category.
Northern Ireland has the highest smoking rates of any country in the UK, with 18.1% of adults there classed as current smokers.
Scotland is next with 17.7%, followed by Wales (16.9%) and England (15.5%).
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