Breathing and the importance during a workout

I'm sure you all have heard us trainers say,'Are you breathing?!'. Why might you ask, is the importance?

1) If you don't breathe, you could pass out while working out! SAFETY FIRST!
2) When you're body is enduring a heavy load, you are actually causing your blood pressure to rise...so breathing properly will reduce your blood pressure.
3) When breathing properly while working out, lifting weights in particular, you are stablizing your spinal cord. This again, is a safety item!!!

Now, if you don't have a trainer telling you when and how to breathe....

*Always practice your reps with your breathing tempo.
*Breathe OUT on the hard part of the excersice.
-i.e. Bicep curls: the up part is the hard part...so breathe out here.
It's that easy!