Lead researcher Professor Jane Wardle said it is possible that young people follow a less healthy lifestyle than their elders.

该研究的负责人简？沃尔德教授说，年轻人的生活方式有可能不如老一辈人健康。

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Professor Jane Wardle, director of Cancer Research UK's health behaviour unit, said there was a growing body of evidence linking obesity with post menopausal breast cancer.

BBC: Breast cancer risk for large mums