Kallie’s granny, Margaret Mulholland lost her fight in 2011 aged 53 - after a short battle.
She is doing race for life with her Uncle Dave
Dave now 22, was only 14 when he lost his mum so wants to help prevent other families being affected.
Cancer is happening right now, which is why I'm taking part in a Race for Life 5k to raise money and save lives.
1 in 2 people will be diagnosed with cancer in their lifetime. Every single pound you donate makes a difference to Cancer Research UK’s groundbreaking work, so please sponsor me now.