
Lifestyle-linked breast cancer burden could be cut with healthier choices
A global analysis of 1990–2023 data from 200+ countries (Lancet Oncology/Global Burden of Disease) finds about 28% of healthy life years lost to breast cancer are attributable to modifiable lifestyle factors, led by red meat intake and smoking, with additional contributions from high blood sugar, high BMI, alcohol, and low physical activity. Global new cases are projected to rise from 2.3 million in 2023 to over 3.5 million by 2050. Maintaining a healthy lifestyle could prevent more than a quarter of breast-cancer–related healthy life years lost. In the UK, roughly one in seven women will develop breast cancer in their lifetime, and the burden is increasingly shifting to lower-income countries due to later diagnosis and access gaps.













