[GabrielF00]

Down voted as this is not factual. Suicide by firearm is much less survivable than taking pills, and even when it is survivable it can be incredibly disfiguring and/or debilitating.

There's also the fact that suicide by firearm can be done impulsively, without much preparation, in contrast to asphyxiation or falls. When there's more requirement for preparation there are more opportunities for someone to change their mind or for some intervention to take place.

The use of guns might be the reason why more women attempt suicide than men, but more men actually die of suicide. It may be that women are more likely to prefer a method that doesn't result in disfigurement (pills) and, because that method is less likely to be successful, women are less likely to die of suicide.

If guns were banned, it is at least plausible that deaths by suicide would go down because the alternatives might be less accessible to those making an impulsive decision and more survivable.