Upsetting life events like bereavement 'not linked to cancer' finds Breast Cancer Now Generations Study

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 The finding comes from the Breast Cancer Now Generations Study, which looked into the causes of breast cancer, following more than 113,000 British women for 40 years.

• Stress or an upsetting life event is unlikely to increase the risk of breast cancer, a study has found.

• Women with the disease often think it was caused by stress - but researchers found no link between the two. 

• And going through a difficult period such as a bereavement or divorce does not increase the odds.