![A woman smokes on a street in Krakow in March.](https://imagenes.elpais.com/resizer/v2/TNFIYZWULJG5PANIN4NF4SZZDQ.jpg?auth=e43a708f5f2cd890ad1899db5746ab1e0516debb499d701629b7ce1a0d38b187&width=414&height=233&smart=true)
Half of cancer deaths in the world are due to preventable risk factors
A study shows that tobacco, alcohol or poor eating habits were behind more than 4.45 million cancer deaths worldwide in 2019. Deaths from preventable causes have increased by 20% in the last decade