hello, do councellors and psychiatrists reduce the severity of madness effects or make madness loss faster? making sure because the effect on the wiki and madness loss while ingame it's psychiatric help and between my skilled councellor and the kiosk only the kiosk says it reduces faster. also, assuming benefits don't stack if they're the same type, if they're at a different level (like the one between councellor and psychiatrist) do they stack? does ship mass reduction stack between two mechanics or one mechanic and a janitor and how much is small medium and large reductions? thanks

edit: i just realized the madness page has a small section on mental resistance that talks about the severity part

edit 2: extra questions, does nightmare atropus give more madness than normal madness?do npcs tend to give higher tiered brains than monsters? and does terraforming a planet change its tier? do madness paintings stack? what about when you place them down and stand on front of them?