Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...
Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...
镉对心脏和其他很多器官都有毒性,根据美国食品药物监督管理局的规定,人体接触镉的阈值很低(每天每公斤或每2.2磅体重0.21-0.36微克)。摄入可能引起胃部不适、恶心和呕吐。
• 儿童和青少年: 15-19岁青少年癌症发病率持续上升,14岁及以下儿童的发病率有所下降。1970年以来,儿童癌症死亡率下降了70%,青少年死亡率下降了63%,很大程度上因为白血病治疗手段进步。