Quick fact. Ready? When we breathe in cold weather, we are able to see our breath. Why? Because the air moving from the warmth of our lungs to the colder atmosphere makes its particles condense, thus making it visible to the human eye.
Quick fact. Ready? Surprisingly, the outside atmosphere is not mainly composed of oxygen (20%), but of nitrogen gas (80%)! And carbon dioxide? It sits at only about a 0.03%!
Quick fact. Ready? When drinking fluid, we end up swallowing up to 3x the actual amount, but in air. This is one of the major causes of gassiness. None the less, always remember to stay hydrated! After all, 80% of you is composed of water.
Quick fact. Ready? Hyperventilating prior to holding your breath allows you to hold it for a longer time before needing to breath again.
Quick fact. Ready? Our lungs are never completely empty from air. Even when we completely breathe out, there is still a bit of air that remains. "Getting the air knocked out of you" is when you accidentally breathe out this remaining air.