Women Working Night Shift Show Increased Risk of Breast Cancer, Meta-analysis Suggests

Women Working Night Shift Show Increased Risk of Breast Cancer, Meta-analysis Suggests
Women who work the night shift have increased odds of developing breast, skin, and gastrointestinal cancer, a new meta-analysis shows. Nurses working night shifts seem to be at even higher risk of developing cancer. The study, “Night Shift Work Increases the Risks of Multiple Primary Cancers in Women: A Systematic Review and Meta-analysis of 61 Articles,” was published in the journal Cancer Epidemiology, Biomarkers & Prevention. Over the years, rates of breast cancer have been going up faster in industrialized regions than in developing countries. It is now the most common cancer in women worldwide. This suggests that women’s lifestyle in modern society also plays a role in cancer development. At the same time, the number of women working night shifts is increasing, particularly in the nursing group. The World Health Organization has classified shift work as probably carcinogenic (meaning it promotes cancer) due to disruption of normal sleep routines. Although several studies have examined the association of night shift work with cancer development, no consensus has yet been reached. Now, a Chinese team of researchers at State Key Laboratory of Biotherapy and Cancer Center performed a meta-analysis to analyse the effect of night shift work on the risk of 11 types of cancer among women. The
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