Exposure to second-hand smoke raises breast cancer risk in non-smokers by 24 percent, study reveals
A recent meta-analysis has revealed that second-hand smoke significantly increases the risk of breast cancer in non-smoking women. Analyzing data from 63 studies involving over 35,000 breast cancer cases, researchers found a 24% higher risk of developing breast cancer among non-smokers exposed to second-hand smoke. The risk is particularly high in settings like homes and workplaces, and among women exposed during childhood or from a partner.
It is indicated that the risk of breast cancer rises with the duration and intensity of exposure to second-hand smoke. Women exposed for more than 40 years face a 30% increased risk. These findings underscore the importance of stricter smoke-free policies and public awareness about the dangers of second-hand smoke, which is a major modifiable risk factor for breast cancer.
With second-hand smoke affecting about 35% of women globally, the study highlights a pressing need for smoke-free environments, especially at home, to reduce breast cancer risk. The researchers call for increased public education on the health risks associated with second-hand smoke exposure and the promotion of smoke-free living spaces.
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