Exposure to light at night does not increase breast cancer risk, major new study suggests

Written By Zoey Richards

Exposure to light at night while sleeping does not increase a woman’s risk of developing breast cancer, a major prospective study funded by charity Breast Cancer Now suggests.

Zoey Richards
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Higher BMI is associated with a lower risk of breast cancer before the menopause
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Smoking – particularly if started during adolescence – is associated with an increased risk of breast cancer, major new study finds