Disabling collision on a Humanoid's head?

It's that simple. I have tried every method, from setting CanCollide to false every frame to using CollisionGroup. Is this even possible?

Also, when you use "Collision Group". You're going to also need to see that group Collidable. Here's an example, of what you should be doing if your using PhysService. You can access the head however you want. As long as, you set it to the collision group.

local PhysService = game:GetService("PhysicsService")
local HeadGroup = PhysService:CreateeCollisionGroup("CGN") -- Collision Group Name
PhysService:CollisionGroupSetCollidable("CGN", "CGN", false ) -- Setting Collision Status Between The Head Group
PhysService:SetPartCollisionGroup(Head, "CGN")

Hope This Helped!