Healthbar not working properly?

Im working on a display healthbar on a surfaceGUI.

This is the code that doesn't print after it hits like 1/3rd of the way through.

local barSize = script.Parent.Size
local barC = script.Parent.BackgroundColor3


while wait(1) do

function changeSize()
    local player = game.Players.PlayerAdded:connect(function(player)
        print("debug 1")
        if player.Health ~= 100 then
            player.barSize = player.Health * 10
            print("debug2")
        end
end)
end
end

changeSize()