The report details how a team of researchers based in the Netherlands looked into women who were left-handed and took 12,000 healthy, middle-aged women who were born between 1932 and 1941 and compared body measurements as well as assessing risk factors such as economic status, smoking habits, and family history of breast cancer and their reproductive background.
"Although the underlying mechanisms remain elusive, our results support the hypothesis that left-handedness is related to increased risk of breast cancer," researchers said.
Emma Taggart, director of policy and campaigns at Charity Breakthrough Breast Cancer tells the Daily Mail that, "Women who are left-handed should not worry about these findings. Although this is an intriguing study, it doesn't give us enough evidence to link left handedness with breast cancer.
"We advise all women to follow a healthy lifestyle by eating a balanced diet, drinking less alcohol and exercising regularly, to help reduce their breast cancer risk. It's also vital for women to be breast aware and visit their General Practitioner if they are concerned about changes in their breasts."
