Even after years of smoking, the body has a remarkable ability to repair itself. Now in a study appearing in ACS' Journal of Proteome Research, scientists report that certain metabolic changes occur soon after quitting, and these changes could help explain how some ill-effects of smoking might be reversible.
Smoking kills more than 7 million people worldwide annually and is one of the most important risk factors for six of world's eight leading causes of premature death, according to the World Health Organization. But soon after a person quits, the body begins to repair some of accumulated damage caused by smoking. In fact, according to the U.S. Centers for Disease Control and Prevention, within two to three months of quitting, lung function begins to improve and the risk of heart attack begins to diminish. A previous study published in 2013 suggested that metabolic changes that occur after smoking cessation may kick start these physiological improvements. Building on this work, Nikola Pluym and colleagues sought to hone in on what alterations smoking causes in the body's metabolic pathways and whether any of these changes are reversible after quitting.
