“One in five people worldwide develop cancer during their lifetime. Prevention of cancer has become one of the most significant public health challenges of the 21st century. It has a critical role to play in the fight against cancer. Based on current scientific evidence, at least 40% of all cancer cases could be prevented with effective primary prevention measures, and further mortality can be reduced through early detection of tumours.”
International Agency for Research on Cancer (https://www.iarc.who.int/cancer-topics)