BBC地平线：阻止男性自杀

     Suicide is the biggest killer of men under 50 in the UK - causing more deaths in this group than car accidents, and even more than cancer       This means that the most likely thing to kill Dr Xand Van Tulleken is himself       And he wants to know why       　　In this sensitive film, Xand finds out what we know about why people develop suicidal thoughts, and whether there is anything that we ca