Have you ever wondered why politicians open their mouths so wide? Is it because they are sucking in cold air to blow out again as hot air? Strange as it may seem, the Christian bible has an explanation which seems plausible. Here’s what Proverbs 13:3 (King James Version) has to say on the matter:
He that keepeth his mouth keepeth his life: but he that openeth wide his lips shall have destruction.
But I’m open to a more scientific explanation, if anyone has it.