A friend sent me a forwarded email about this breathing therapy. Apparently, my hubby has also taught me to do this in his 'senaman tua' method. But he himself doesn't know why. SO, I think this is a good explanation for the exercise.
Our noses have left and right nostrils. (Who doesn't?)
Are these nostrils having the same function for inhaling/"breathe- in" and exhaling/"breathe- out"? Okay, let's get serious. Actually it's not the same and we can feel the difference. Accordingly, the right side represents the sun/"heat" and the left side represents the moon/"cold".
When having headache, try to close your right nostril and use your left nostril to do breathing for about 5 min. The headache should be gone.
If you feel too tired, do it the opposite way. Close your left nostril and breathe through your right nostril. After a while, you should feel refresh again.
Because the right side belongs to heat, so it gets hot easily. The left side gets cold easily.
Women breath mainly with their left nostril, so they get calm down easily. Men breath mostly with their right nostril, so they get angry easily. (Hmm.. not so sure about this..)
When we wake up, do we notice which nostril breathes faster? Is it the left side or the right side ? If the left nostril breathes faster, you will feel very tired. Close your left nostril and use your right nostril for breathing and you will get refresh quickly. (must try!)