Respuesta :

the primary risk factors for developing cancer are:
-aging: the older the greater the risk 
- smoking - the primary reason for lung cancer
- radiation and chemicals exposure
-  certain hormones
- alcohol
- family history of cancer,
- lack of physical activity, or being 
overweight.

Answer:

The list below includes the most-studied known or suspected risk factors for cancer.

  1. Aging
  2. Drinking alcohol
  3. Chronic Inflammation
  4. Dieting disorder
  5. Hormones Imbalance
  6. Immunosuppression
  7. Infectious Agents
  8. Obesity
  9. Radiation  exposure
  10. Sunlight  exposure
  11. Tobacco and smoking