Lifestyle Factors

Non-modifiable risk factors

  • Age (click here to learn more) 
  • Family history of breast cancer
  • Genetic predisposition
  • Early menarche or late menopause
  • Personal history of breast cancer
  • Previous benign breast diseases


Modifiable risk factors

  • No childbirth or first live birth after age 35
  • No breastfeeding
  • Use of hormonal replacement therapy
  • History of receiving radiation therapy to the chest before age 30
  • Being overweight or obese after menopause
  • Alcohol consumption
  • Physical inactivity


Probable risk factors

  • Smoking
  • Night shift work
  • Stress
  • Diet rich in meat / dairy products