Smoking Impacts DNA Even 30 Years After Quitting

Smoking, a leading preventable cause of deaths worldwide, impacts the human DNA for more than 30 years even after one quits, a study has found. The findings showed that smoking leaves its “footprint” on the human genome in the form of DNA methylation — a process by which cells control gene activity. Methylation, one of the mechanisms of the regulation of gene expression, affects what genes are turned on, which has implications for the development of smoking-related diseases. “Our study has found compelling evidence that smoking has a long-lasting impact…

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Not just cancer, smoking causes heart failure too

Thickens walls of key organ. Smoking is associated with thicker heart walls and blood-pumping difficulties that may eventually lead to heart failure, a US research suggests. The research, done in adults who didn’t have any obvious signs of cardiovascular disease, also found that the more people smoke, the greater the damage to the heart’s structure and function, said senior author Dr Scott Solomon of Brigham and Women’s Hospital and Harvard Medical School in Boston. “We’ve known for years that smoking could lead to he art attacks, which may result in…

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Most Fatal Type of Stroke Declining Along With Smoking Rates

The type of brain bleeding that causes the most lethal kind of stroke has declined substantially since 1998, possibly as a result of falling smoking rates, according to researchers in Finland. Bleeding in the space between the brain and the thin tissue covering it, known as subarachnoid hemorrhage, affects fewer than 200,000 people in the U.S. each year and represents about 10 percent of all strokes. About 50 percent of all cases die within a year, the study authors note in the journal Neurology. In Finland, however, a decline since…

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