Can I make this take away thirst too somehow?

Ok so I have this script

local CAS = game:GetService("ContextActionService")

local RE = game:GetService("ReplicatedStorage"):WaitForChild("RE")

local fill = script.Parent:WaitForChild("Top"):WaitForChild("fill")

local stam = 50

local speed = 16

local sprinting = false

local function sprint(str, state, object)

if stam < 1 then return end

speed = state == Enum.UserInputState.Begin and 24 or 16

sprinting = state == Enum.UserInputState.Begin

while sprinting and stam > 0 and wait(.1) do

stam = stam - 1

fill:TweenSize(UDim2.new(stam/50,0, 1, 0), "Out", "Quint", .1, true)

RE:FireServer("sprint", {speed})

end

sprinting = false

speed = 16

RE:FireServer("sprint", {speed})

wait(1)

while not sprinting and stam < 50 and wait(.1) do

fill:TweenSize(UDim2.new(stam/50,0, 1, 0), "Out", "Quint", .1, true)

stam = stam + 1

end

end

CAS:BindAction("sprint", sprint, true, Enum.KeyCode.LeftShift)

Now is there a way to make it take away thirst as well and if so how would I do that?