Six silent habits that raise colorectal cancer risk

Colorectal cancer is one of the most diagnosed cancers globally, yet it is also highly preventable, with 40% to 50% of cases linked to modifiable lifestyle factors, according to oncologist Wasif Saif. Six silent habits can increase risk: prolonged sitting, which is linked to obesity and insulin resistance; excess weight, especially abdominal; and high consumption of processed meats containing carcinogenic nitrites. Smoking raises colorectal cancer risk by 18% to 26%, alcohol consumption harms healthy cells even in moderation, and insufficient fiber intake fails to cleanse toxins and reduce inflammation.