Cancer Prevention 109

Cancer prevention is defined as active measures to decrease the risk of cancer. The vast majority of cancer cases are due to environmental risk factors, and many, but not all, of these environmental factors are controllable lifestyle choices. Thus, cancer is considered a largely preventable disease.

Greater than 30% of cancer deaths could be prevented by avoiding risk factors including: tobacco, overweight / obesity, an insufficient diet, physical inactivity, alcohol, sexually transmitted infections, and air pollution. Not all environmental causes are controllable, such as naturally occurring background radiation, and other cases of cancer are caused through hereditary genetic disorders, and thus it is not possible to prevent all cases of cancer.

Anyone can get cancer, the age is one of the biggest factors that can make a person more likely to get cancer: 3 out of 4 cancers are found in people aged 55 or older. But there are many other factors that affect cancer risk and some of them can be changed. It is only natural that people are looking for more ways to prevent cancer.