Smoking wipes 10 years off a person’s life on average, according to the longest ever study of smokers, but giving up at any age brings huge benefits.

Quitting at 30 virtually eliminates the risk from dying prematurely, and giving up at 50 halves it. But half of those who fail to kick the habit will die as a result of smoking, and a quarter of all smokers die in middle-age.



The results come from a 50-year update of the landmark 1954 paper which first linked smoking with lung cancer. One author of the update, published in the British Medical Journal, is Oxford University epidemiologist Richard Doll, now 91, who was a co-author of the original paper.



By following the fate of the original 34,439 male British doctors recruited for the study in the 1950s, the update has yielded fresh insights into how smoking affects survival to middle age and beyond.



More here.

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