| 1. | Smoking , which is linked to lung , mouth , stomach , pancreatic and bladder cancers , is the biggest avoidable risk factor , followed by alcohol and not eating enough fruits and vegetables . " of the 2 . 43 million deaths , 37 percent of them are from lung cancer , " said ezzati 报道说,吸烟这种不良嗜好与肺癌口腔癌胃癌胰腺癌以及膀胱癌等多种癌症有关,是一项最为主要的可以避免的危险因素,其次是酗酒和不良饮食没有摄入足够的蔬菜和水果。 |