Obesity is the biggest driving force behind the most common form of breast cancer in older women, say researchers.

Alcohol and then cigarettes are the next largest culprits, according to Cancer Research UK.

One in eight women in the UK develop breast cancer in their lifetime, data shows, and the majority of these tumours are “hormone sensitive” meaning their growth is fuelled by hormones.

Too much stored fat in the body raises the level of these “sex” hormones.

via BBC News – Obesity ‘leading driver’ of breast cancer.