Younger people are being diagnosed with an aggressive form of the cancer
Nearly twice as many women are being diagnosed with aggressive breast cancer than they were thirty years ago.
According to the University of Washington, the rate of metastatic cancer, one of the most dangerous and aggressive kinds, rose by around two per cent each year between 1976 and 2009.
The data reveals that only 1 in 173 women will develop breast cancer before the age of 40, however tumours in younger patients tends to be more aggressive with a worse prognosis than older sufferers.
The study leader Dr Rebecca Johnson attributed the rising rate of obesity and hormonal birth control as potential factors in the increase in cases of aggressive cancer. She added that much more research would need to be done to establish a cause with a focus on the possible effects of hormones in meat and plastic in bottles.
Other doctors says that this study should not cause alarm as figures are still low but urge women to be more familiar and attentive with their breasts.
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