Key points from article :
More people under 50 are being diagnosed with cancer, with bowel cancer showing the sharpest rise.
The rising trend is concerning as it affects young people in their prime.
Increase noted across high, middle, and low-income countries, suggesting global epidemic.
Changes in diet, especially processed red meat and Western-style eating, are potential culprits.
Some cancers in younger people seem more aggressive, potentially due to later diagnosis or specific mutations.
Large-scale research tracking lifestyle and environment is crucial to unraveling the cause.
Article by Dana-Farber Cancer Institute and Harvard Medical School, published in the journal Science.