A recent study published in the journal The New England Journal of Medicine found that quitting smoking at any age can significantly increase life expectancy. The study, conducted by researchers at the University of Michigan School of Public Health, analyzed data from a range of national US sources and created "life tables" that showed people's life expectancies in 10-year intervals between the ages of 35 and 75. The findings demonstrate that the benefits of quitting smoking outweigh the risks, regardless of when you quit.