Marina Pollán

In 2022, approximately four out of every 10 new cancer cases worldwide were due to modifiable risk factors, primarily tobacco or alcohol consumption and infections, including those caused by the human papillomavirus or H. pylori bacteria. These are some of the conclusions of a global study led by the World Health Organisation (WHO) and its International Agency for Research on Cancer (IARC), published in Nature Medicine. In Spain, 41.8% of cancer cases in men are attributed to modifiable external factors, compared to 26.1% in women, with smoking remaining the main factor (28.5% and 9.9%, respectively). The analysis is based on data from 185 countries.

Un estudio ha estimado las muertes por cáncer que se producirán en la Unión Europea y el Reino Unido en 2023. Comparándolas con las observadas en 2018, estiman que se reducirán en un 6,5 % en hombres y un 3,7 % en mujeres de forma global. Sin embargo, en España aumentará la mortalidad por cáncer de pulmón en mujeres. Los resultados se publican en la revista Annals of Oncology. 

A study published in the British Journal of Sports Medicine has found a link between the practice of physical exercise and a lower risk of developing breast cancer in any of its types. The authors claim that there is very strong evidence that the association is causal.

"The level of alcohol consumption that does not harm health is zero," says a review of dozens of studies conducted in recent years on the effect of light drinking. The 20 or so authors of the paper, and other experts, insist that "alcohol is carcinogenic from the first drink". In their view, this message should be conveyed more clearly to the public.