But unintentional injuries — mostly drug overdoses — were also a big reason for the decline.

但非故意伤害——大多为服药过量——也是寿命减少的很大因素。

According to the World Health Organization, drowning is the third leading cause of unintentional injury death worldwide.

据世界卫生组织称，溺水是全球意外伤害死亡的第三大原因。

But it's trauma usually from unintentional injuries that is most likely to kill somebody who is younger.

但通常是意外伤害造成的创伤最有可能杀死更年轻的人​​。

The US Centers for Disease Control cite suicide as the second leading cause of death among individuals aged 15 to 34, right after unintentional injuries like traffic accidents.

美国疾病预防控制中心（CDC）提到自杀是15-34岁人群中第二大死因，位居意外伤害（如车祸）之后。

Unintentional injuries, traffic accidents, and drug overdoses, particularly prescription drug abuse emerging now in the data as another big cause of mortality in this population.

意外伤害、交通事故和药物过量，尤其是现在数据中出现的处方药滥用是这一人群死亡的另一大原因。

Men are much more likely to die from an unintentional injury or accident than women are and also have much higher suicide rates than women.

男性比女性更容易死于意外伤害或事故，而且自杀率也比女性高得多。

But psychology has a lot of tools to figure out how people's behavior leads to unintentional injury or death, and the better we understand them, the better we can keep our kids safe.

但是心理学有很多工具来研究人们的行为如何导致意外伤害或死亡，我们越了解这些内容，就越能保证孩子的安全。