Breast cancer is more likely to occur in the case of young women who smoke, when compared to women who do not smoke at all, or start smoking later in life . The researchers belonging to the Mayo Clinic at Rochester have revealed this. Women who start smoking before their first pregnancy stand a 20% higher risk of contracting breast cancer.
In comparison, women who started smoking after the birth of the first child or never smoked enjoy relative immunity. The researchers used data from a study that covered 41,836 women from Iowa, aged between 55 to 69 years.
The study was designed to identify risk factors for cancer and other chronic diseases in postmenopausal women.