For loop not working if while loop present?

Hello, I'm practicing with for loops and the script work until the while loop is in there. Any answers of what I did wrong?

local part = script.Parent
local db = true


part.Touched:Connect(function(player)
	local char = player.Parent
	local humanoid = char:FindFirstChild("Humanoid")
	if humanoid and db then
		db = false
		for i, v in pairs(char:GetChildren()) do
			if v:IsA("MeshPart") then
				local fire = Instance.new("Fire")
				fire.Parent = v
				
				while  do
					humanoid:TakeDamage(10)
				end
			db = true	
			end
		end
	end
end)

You need an argument in between the while and do. So, with while loops, here's how they work:

While the statement in between the while and do is true, the code inside it will run. If you want a loop that lasts forever, do: while true do, because true is always true. Just remember, when using while true do, use a wait() at the end of your code or else you will get the following error: Script allowed exhaustion time, and it will also cause lag for the client.