The Guardian's health editor discusses the global increase in cancer cases among under-50s with a focus on the rise in bowel cancer rates, featuring insights from Yin Cao, an associate professor at Washington University leading a study on the trend.
A global study has found that the number of cancer cases among individuals under the age of 50 has increased by nearly 80% in the past three decades. The research, which analyzed data from 204 countries, revealed that global cases of early onset cancer rose from 1.82 million in 1990 to 3.26 million in 2019. The study suggests that poor diets, alcohol and tobacco use, physical inactivity, and obesity are among the contributing factors. Breast cancer accounted for the largest number of cases and deaths, followed by windpipe, lung, stomach, and bowel cancers. The study warns that without intervention, the number of new early onset cancer cases and deaths will continue to rise by 2030.