Step  2: Breathe through your nostrils

Your nostrils are there for a reason, peeps. Breathing through them heats air up so that it travels 'more easily' through the body.

Mouth breathing, on the other hand, can cause health issues. Such were the findings of research published in the Jan/Feb issue of General Dentistry in 2010.

While the findings focused on the effects of mouth breathing on kids (and how it can even change the shape of their faces), mouth breathing can also cause poor oxygen concentrations. This in turn can lead to health issues such as high blood pressure, heart problems and other issues. Yikes.

Naturopath Mim Beim of Breathing Well goes one step further, saying: "If you are a mouth breather, the very best thing you can do for your health is to learn to breathe through your nose." She says you will get fewer colds, have better circulation and improved concentration.

Hot Tip: Whenever you catch yourself breathing through your mouth, swap it to nose breathing, asap. Pretty simple, right?