Scientists in Cambridge say they could be only five years away from delivering a routine test that tells us how likely we are to get common cancers.
It follows their discovery of more genetic causes of the disease.
And they hope that by understanding the causes of cancer better, they may get closer to discovering cures, as Elodie Harper reports.
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After a sunny start, cloud will tend to increase from the northwest during the day, but it will stay dry.
Heavy rain in places which will clear away to the east by late evening.
John Willis was born without fully formed arms and legs but set himself the task of participating in all 34 Olympic and Paralympic sports.