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A study has found that the females sleeping<\/a> for longer hours are more prone to breast cancer than those women who wake up early in the morning. A Technique known as Mendelian randomization was used by researchers to analyze genetic variants associated with three particular sleep traits — morning or evening preference (chronotype), sleep duration, and insomnia.<\/p>\n <\/p>\n (People Also Like To Read: <\/strong>Are You Living With Chronic Migraine?<\/a>)<\/strong><\/em><\/p>\n <\/p>\n Based on the analyzed database of more than four lakh women from two studies — UK Biobank study and Breast Cancer Association Consortium<\/a> (BCAC) study.<\/p>\n <\/p>\n <\/p>\n In the context of observational analysis of UK Biobank data, there was a slightly lower risk of breast cancer in case of morning preference than evening preference. Though there was little evidence for an association with sleep duration and insomnia symptoms.<\/p>\n <\/p>\n <\/p>\n BCAC examination also supported a protective effect of morning preference and showed potential harm of longer sleep duration (more than the recommended 7-8 hours) on breast cancer, although evidence for insomnia symptoms<\/a> was inconsistent.<\/p>\n <\/p>\n <\/p>\n Eva Schernhammer from the University of Vienna in Austria commented on the findings, published in the journal BMJ, identify a need for future research exploring how the stresses on our biological clock can be reduced.<\/p>\n <\/p>\n (You Might Also Like To Read: <\/strong>Changeovers for Carnivores: Add More Plants to your Diet<\/a>)<\/strong><\/em><\/p>\n <\/p>\n