The World Health Organisation is warning of a 'tidal wave' of cancer spreading across the globe.
Figures released to coincide with World Cancer Day, show the number of cases is expected to jump 75% in just twenty years.
Scientists say more must be done to detect the illness at an early stage, or prevent it, and they're calling for restrictions on alcohol and sugar to be considered.
Here, the Irish Cancer Society is urging people to make changes to their diets and lifestyles too.
Kathleen O'Meara of the ICS says people can take control and help protect themselves against cancer.
"There's increasing evidence to show by eating plenty of vegetables, fruit, whole grains and pulses, you can reduce your risk of many cancers," she said.
"And being physically active can also reduce your risk of getting a secondary cancer if you've come through the cancer journey already."
"And it's never too late to take up that healthy lifestyle."