Josep M. Borràs
Scientific coordinator of the National Health System Cancer Strategy, director of the Catalan Oncology Plan and Professor of Preventive Medicine and Public Health at the University of Barcelona
The article is excellent and very well designed, with a seven-year follow-up to accurately assess the impact and reach solid conclusions. It can definitely go a long way in highlighting the importance of lifestyle on the likelihood of survival in women treated for breast cancer.
It confirms previous recommendations, but greatly strengthens the available evidence thanks to its design.
The benefits at the individual level are relevant, but modest [taking into account absolute risk]. However, considered as a group of patients, it has a high impact. And, in any case, performing these behaviours of better diet and physical exercise has very positive consequences on the quality of life of the women affected.