A non-smoker who lives with someone who does smoke is at 51 per cent higher risk of developing mouth cancer than if they lived in a smoke-free home, a study shows.
It has long been known that smoking increases the risk of cancers affecting the mouth, throat and lips — as well as the lungs, pancreas, stomach and other organs.
But new findings from King’s College London confirm what experts had feared; second-hand smoke also greatly increases a person’s risk of oral cancer.
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