The Importance of the Left and Right Sides

By Sandra - September 2025

Our brain is divided into two hemispheres:

  • the left hemisphere, associated with language, logic, numbers, and sequences, tends to process information analytically and in detail;
  • the right hemisphere, linked to creativity, music, and intuition, processes information more comprehensively and spontaneously;

In fact, science reminds us that the two hemispheres never work "against each other," but always in close collaboration.

What's even more fascinating—and this is where yoga meets modern physiology—is breathing. Our nostrils, in fact, are not simple air passages, but instruments that can influence the nervous system:

  • Breathing primarily through the left nostril, the body tends to calm down: the heart rate slows, blood pressure drops slightly, and the ability to relax increases.
  • Breathing through the right nostril, the body activates: the heart rate accelerates, blood pressure rises slightly, and we feel more energetic and ready for action.

In yoga, this phenomenon is described through the image of two energy channels: Ida (on the left, associated with the moon and calm) and Pingala (on the right, linked to the sun and energy).

This isn't magic, but an ancient language now supported by science: the parasympathetic branch of the nervous system promotes relaxation, while the sympathetic branch stimulates activation.

With the practice of alternate breathing, or Nadi Shodhana, we can harmonize these two forces, creating a natural balance between calm and vitality.

How to practice Nadi Shodhana
Nadi Shodhana, or alternate breathing, is one of the most well-known pranayama techniques. Its goal is to purify and balance the energy channels, restoring harmony between calm and vitality.

  • Find a comfortable position: Sit cross-legged, with your back straight and your shoulders relaxed.
  • Bring your right hand to your nose: Use your right thumb to close the right nostril and your ring finger to close the left nostril (the other fingers can remain curled or rest on your forehead).
  • Start with the left nostril: Close the right nostril, inhale slowly and deeply through the left nostril.
  • Change sides: Close the left nostril and exhale completely through the right.
  • Continue: Inhale through the right, then close it and exhale through the left

This is a complete cycle. Continue for a few minutes, keeping your breathing slow and regular.

With practice Nadi Shodhana brings mental clarity, reduces stress, improves concentration, and gives a profound sense of inner balance. It's ideal for both starting the day with energy and ending it with serenity.

A hug!