A new study has shown that women who smoke run a higher risk of developing cancer or having a heart attack than men do.
The findings from research in Norway suggest that women are more vulnerable biologically to the harmful effects of tobacco smoke, and are more likely to get cancers such as bowel or colon.
By looking at the medical records of over 600,000 patients, the researchers found that female smokers were twice as likely as men to get bowel cancer from the habit, with those who started aged 16 or under running an even bigger risk.
It also found that even if women smoke less than men, they still have an increased risk of colon cancer.
It has previously been found that women are also at a greater risk of having a heart attack from smoking compared to men, although scientists are currently unsure why.
According to the BBC, currently one in five UK adults is a smoker, and although the rates have been falling – the decline has been slower in women.
'It's well established that smoking causes at least 14 different types of cancer, including bowel cancer,' explained Sarah Williams from Cancer Research.
'For men and women, the evidence is clear - being a non-smoker means you're less likely to develop cancer, heart disease, lung disease and many other serious illnesses.'
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