function Changed() if game.Workspace.Reaper.Humanoid.HealthChanged then script.Parent.Text = game.Workspace.Reaper.Humanoid.Health end
my script
you need it to trigger when it changes like
game.Workspace.Reaper.Humanoid.HealthChanged:Connect(function() script.Parent.Text = game.Workspace.Reaper.Humanoid.Health end)