SOLVED how would drain a player's health with one script? (it takes 2)

here is my code, it's in serverscriptservice. I have made this by myself. it works prefectly. You just need to tween the parts, that script is included

local player = game:GetService('Players').PlayerAdded:Connect(function(player)
local char = player.CharacterAdded:Connect(function(character)
local hum = character:WaitForChild("Humanoid")
    end)
end)

local function DamageOverTime()
local GasPart = game.Workspace.GasPart
repeat wait() hum.Health = hum.Health - 0.05
until
    GasPart.TouchEnded  
end         

for k,n in pairs(game.Workspace:GetChildren()) do
    local player = game:GetService('Players').PlayerAdded:Connect(function(player)
    local char = player.CharacterAdded:Connect(function(character)
            hum = character:WaitForChild("Humanoid")
    end)
end)
    local GasPart = game.Workspace.GasPart      

    if n.Name == "GasPart" then 

n.Touched:Connect(DamageOverTime) 

        end
end

another script in serverscriptservice.

local TweenService = game:GetService("TweenService")
local Info = TweenInfo.new(
        1,
        Enum.EasingStyle.Linear,
        Enum.EasingDirection.InOut,
        -1,
        true,
        0   
    )

    local Goals = {
    Size = Vector3.new(11.56, 17.11, 27.11);
    }

for k,n in pairs(game.Workspace:GetChildren()) do

    if n.Name == "GasPart" then     
        local exampletween = TweenService:Create(n, Info, Goals)
        exampletween:Play() 
    end
end