How to Breathe When Running: "Ever wonder why some days you feel like an energizer bunny and can keep running and running, while other days your legs feel like lead and you have zero stamina? Certainly the amount of sleep you got the night before, stress levels, and diet play a role in how you perform during your runs, but how you regulate your breath during your jogging session also effects your energy levels. Here's how to power your muscles with fresh oxygen on each stride"
'via Blog this'
