Too much is bad, too little is bad, it has a number of important functions, so that poisonous bit is a huge oversimplification that gets repeated a lot, but is clearly incorrect if you need some to be alive.
Too much is bad, too little is bad, it has a number of important functions, so that poisonous bit is a huge oversimplification that gets repeated a lot, but is clearly incorrect if you need some to be alive.