Researchers are comparing tumor samples from the 1950s with current samples to identify reasons for the increase in colon cancer diagnoses among younger adults. There are around 44,100 new cases of colon cancer in the UK each year, with it most common in people aged 85 to 89. However, since the early 1990s, the incidence rate among younger people (ages 25 to 49) has increased by 62.3%. Specifically, the incidence in this age group increased from 8 cases per 100,000 in 1993-95 to 13 cases per 100,000 in 2018. Bowel cancer is the only cancer that is growing faster in younger adults than in older people. Around 2,700 to 49 in 25 in the UK are diagnosed with colon cancer in younger adults each year.