03-11-2011, 12:13 PM
I don't understand why everyone is saying that -5 is too cold to be outside. Where i'm from I still go running out in -15 (Celcius), no harm taken. I used to play rugby out in whether that was -5, and the worst thing I got was pneumonia because the ground was wet. It's not bad for the human body, I'd recommend doing some research before stating those comments in your posts.
It actually does more good to your immune system because your body has to work harder to keep you warm, and fight off the daily bacteria in your body at the same time that you may have.
It could be just that you're not used to taking in the cold air because it's more dense than room temp air. The cold air will cause your lungs to get colder when you breath in the air after a good run, meaning that your lungs might retract from the difference in temperature more than usual. If it feels like a pushing force on your chest, then that's probably all it is. Nothing to worry about, unless it really hurts, or you have really sharp pains or other weird sensations.
It actually does more good to your immune system because your body has to work harder to keep you warm, and fight off the daily bacteria in your body at the same time that you may have.
It could be just that you're not used to taking in the cold air because it's more dense than room temp air. The cold air will cause your lungs to get colder when you breath in the air after a good run, meaning that your lungs might retract from the difference in temperature more than usual. If it feels like a pushing force on your chest, then that's probably all it is. Nothing to worry about, unless it really hurts, or you have really sharp pains or other weird sensations.