How to make a part add points whilst being touched and only whilst being touched?

What I have so far works, but it's not without it's problems. So what I want is for it to add 1 every 1 second and only do this whilst the player is touching the part. What I think is happening is that it somehow keeps triggering the touch event without triggering the touchended.

part = script.Parent
HMain = game.Workspace.HMain.Value
stopped = false

part.Touched:connect(function(hit)
    if hit.Parent:FindFirstChild("Humanoid") then
        stopped = false -- Set to false so we know we're touching it.
        while stopped == false do -- If we're touching it then.
            stopped = true -- Set to true so we can't trigger this again until it's done.
            HMain = HMain + 1
            print(HMain)
            wait(1)
            stopped = false -- Set to false so we can trigger the while loop again.
        end
    end
end)

part.TouchEnded:connect(function()
    print("Stopped")
    stopped = true  -- So we can't trigger it anymore.
end)