Shitali Pranayama or The Cooling Breath, like all mouth-inhalation techniques, is only to be used sparingly in situations where the body feels over-heated. By rolling your tongue and inhaling through the mouth as shown in the video you will feel the air being cooled as it passes. Breathing like this for several minutes will cure heat exhaustion and cool the body down from the inside out. It is very important to note that mouth-breathing is something to be completely avoided except in...