Women who put on weight as they age increase breast cancer risk: research

Researchers have found that a woman who is 5'4 tall who puts on just over two stone between the age of 20 and 50 is almost twice as likely to develop breast cancer after the menopause.
The findings back up earlier research which has linked obesity to breast cancer.

Fat stored in the body produces hormones and chemicals which may fuel the development of abnormal cells and lead to cancer, it is thought.