The video highlights a concerning trend of increasing bowel cancer diagnoses among individuals under 50 worldwide. Studies are ongoing to pinpoint the main causes, but factors such as poor diet, consumption of ultra-processed foods, obesity, and lack of exercise are suspected contributors. England is noted as one of the countries experiencing significant increases, with an average annual rise of 3.6% in cases among this age group. Dr. Rachel Orit from Cancer Research UK explains that while obesity and lifestyle factors are likely contributors, improved early detection might also play a role in the rising statistics. Genetic factors could also be influencing these trends. Cancer Research UK is actively funding research through initiatives like Team Prospect to better understand and address these issues. The video also notes that while bowel cancer is common, it remains relatively rare in younger adults, with only about 5% of cases occurring in this demographic. Early diagnosis is emphasized as crucial for effective treatment, and individuals are encouraged to consult doctors if they notice symptoms like changes in bowel habits or unexplained weight loss.