This weekend thousand of women from our region are taking part in the Race for Life.
The event organised by Cancer Research UK has raised nearly £500 million since it was first run in 1994.
Today two races are being held at the Royal Norfolk Showground near Norwich, and there will be another one there on Sunday and at Harlow.
The money raised so far has helped fund more than 4000 researchers, doctors and nurses in the fight against cancer.
Among those taking part in the first race today were sisters Emma Fiddy and Lisa Edwards. They lost their Dad, Michael, to cancer which also claimed the life of Emma's mother-in-law Linda. She herself has had cervical cancer.
Other Race for Life events are taking place throughout the summer.