Not all of those suicides are by gun, but a majority are. And while some people feeling suicidal impulses will choose another method if a gun is not at hand, public health researchers cite two reasons guns are particularly dangerous: 1) Guns are more lethal than most other methods people try, so someone who attempts suicide another way is more likely to survive; 2) Studies suggest that suicide attempts often occur shortly after people decide to kill themselves, so people with deadly means at hand when the impulse strikes are more likely to use them than those who have to wait or plan.

That means that strategies that make suicide more inconvenient or difficult can save lives. Guns, when they are in the home, can make self-harm both easy and deadly.