How do Volcanoes Effect People?

Volcanoes is something i would not want to live near, they scare me. Volcanoes can actually be good in the way that it produces rich soils for farming. But they effect people also. Valcanoes can release gases that can be a danger to people with respiratory problems and the ashes from a valcanoe can make your house tear down if you dont clean it off. If the ashes are coming down heavy it will be impossible to breathe. Normally people dont get hurt in a lava flow because it is so slow but the one that can kill you and is faster than you can run is the pyroclastic flow.