The points value wont increase, how do I make my two loops co-exist?

	function onPlayerEntered(newPlayer)

    	local stats = Instance.new("IntValue")
    	stats.Name = "leaderstats"

    	local points = Instance.new("IntValue")
    	points.Name = "Currency"
    	points.Value = 0

		local Prison = Instance.new("IntValue")
    	Prison.Name = "Prison"
    	Prison.Value = 10

    	stats.Parent = newPlayer 
    	points.Parent = stats
		Prison.Parent = stats

    	while true do
		wait(1)	
				if Prison.Value >= 1 then
				Prison.Value  = Prison.Value - 1
			end
		end
		
		while true do
		wait(2)
				points.Value = points.Value + 50
			end
    	end
	
game.Players.PlayerAdded:connect(onPlayerEntered)

To run 2 loops at the same time you need to use a feature called Coroutines

Here is some documentation to help you:

Guide: http://wiki.roblox.com/index.php?title=Beginners_Guide_to_Coroutines

Function Dump: http://wiki.roblox.com/index.php?title=Function_dump/Coroutine_manipulation

You could also use Threading to run 2 loops at once

Tutorial: http://wiki.roblox.com/index.php?title=Threading

Hope This Helped!

I would not recommend doing that. putting anything below a while true do loop will not work unless it's in another function. and it wont repeat due to it only working once as it is in a player added function.

you cant have 2 loops running at the same time on 1 script, what the computer does is read the script, can you read 2 books at the exact same time?