A study of nearly 500,000 people indicates that smoking reduces the length of telomeres, the terminal segments of chromosomes found in white blood cells integral to our immune systems. The measurement of these telomeres serves as a gauge for determining our rate of aging and the ability of our cells
In her presentation to the European Respiratory Society International Congress in Milan, Italy, Dr.
Dr Dai and her colleague Dr Feng Chen, from The Chinese University of Hong Kong, analyzed data from the UK Biobank, which contains genetic and health information from half a million UK participants. They looked at whether a person was a current smoker, previous smoker, or had never smoked, their level of addiction to smoking, how many cigarettes they smoked , as well as information on leucocyte telomere length taken from blood tests.
The researchers used data from 472,174 UK Biobank participants, and 113 SNPs relating to smoking status . “Our study adds to the evidence that smoking causes aging. As there are clear health benefits of smoking cessation, it is time to include cessation support as well as treatment into daily clinical management to help us to create a smoke-free environment for the next generation.”
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