34岁女子骨癌化疗17次又确诊白血病，哪些人群易被癌症“盯上”？

A 34-year-old woman with a history of bone cancer underwent 17 rounds of chemotherapy before being diagnosed with leukemia. Cancer formation involves gene mutations and growth control disruption. High-risk groups include those with family history, older adults, irregular lifestyles, high stress, and chronic diseases. To lower risk, maintain a healthy diet, quit smoking, exercise regularly, avoid harmful substances, and get regular check-ups.