Do you also find yourself spending a large proportion of your day sitting hunched over a desk, computer, iPad and phone? Or sitting slouched on the sofa? Most people do. It affects our posture. We end up hunched over with less air space for our lungs. Unless we purposefully do something to counteract this, we carry it over into our training. Getting more air (and the all important oxygen) into your lungs helps you train more efficiently.
To help restore your posture, the first thing to do is to be aware of how you are carrying yourself when standing and sitting. A simple and effective way to do this is to imagine a helium balloon coming out of the top of your head, pulling your torso upright. This technique can be useful while you are training too. In addition to this, make sure you stretch out your pectorals (chest) and start to strengthen your trapezius and rhomboids.
So, the next time you are out training, remember to take your helium balloon with you.