Why breathe through alternate nostrils for pranayama?

Breathing through alternate nostrils, known as Nadi Shodhana or Anuloma Viloma, is a common practice in pranayama, the yogic breathing exercises. There are several reasons why alternate nostril breathing is considered beneficial in pranayama:

Balancing the Ida and Pingala Nadis: In yogic philosophy, the body is believed to have three main energy channels or nadis - Ida, Pingala, and Sushumna. Ida is associated with the left nostril and the lunar energy, while Pingala is associated with the right nostril and solar energy. When we breathe through alternate nostrils, we are said to balance the flow of energy in these nadis, promoting equilibrium in the body.

Stimulating the Vagus Nerve: Alternate nostril breathing has been shown to stimulate the vagus nerve, which is an important part of the parasympathetic nervous system. The vagus nerve plays a crucial role in regulating various bodily functions, including heart rate, digestion, and immune responses. By stimulating the vagus nerve, alternate nostril breathing can help promote relaxation and overall well-being.

Improving Concentration and Focus: The practice of alternate nostril breathing involves focusing on the breath and the sensation of air flowing through each nostril. This can help enhance concentration and focus, making it an effective technique for meditation and other mindfulness practices.

Reducing Stress and Anxiety: Alternate nostril breathing has been found to be beneficial in reducing stress and anxiety levels. By slowing down the breath and promoting relaxation, this practice can help calm the mind and alleviate anxiety symptoms.

Balancing the Brain Hemispheres: Alternate nostril breathing is believed to have a balancing effect on the left and right hemispheres of the brain. When we breathe through the left nostril, the right hemisphere becomes more active, and when we breathe through the right nostril, the left hemisphere becomes more active. This alternation helps in integrating the functions of both hemispheres, promoting cognitive balance and mental clarity.

Purification of the Nadis: According to yogic tradition, alternate nostril breathing helps to purify the nadis, removing blockages and allowing prana (life force energy) to flow freely through the body. This purification is believed to enhance overall health and well-being.

It's important to note that while alternate nostril breathing can be beneficial, it is always advisable to learn and practice pranayama under the guidance of a qualified yoga teacher, especially if you have any underlying health conditions.