What Is Alternate Nostril Breathing?
Alternate nostril breathing, known in Sanskrit as Nadi Shodhana Pranayama, is a foundational practice in yoga. [3, 17] The name translates to "subtle energy clearing breathing technique," which points to its core purpose: to purify and balance the body's
energy channels, known as 'nadis'. [1, 3] While many breathing exercises aim to either energize or relax, Nadi Shodhana is unique in its focus on creating equilibrium. [4] It involves gently closing one nostril at a time to guide the breath in a specific pattern. This simple act of conscious breathing helps to quiet the mental chatter and soothe the nervous system, making it an excellent tool for pre-sleep relaxation. [3, 7]
The Science of Deep Calm
The calming effects of alternate nostril breathing aren't just anecdotal; they are backed by modern science. The practice directly influences the autonomic nervous system, which controls our 'fight-or-flight' and 'rest-and-digest' responses. [3, 4] Specifically, Nadi Shodhana helps activate the parasympathetic nervous system, the body's relaxation command centre. [2, 3] This activation leads to a cascade of physiological benefits ideal for sleep, including a lower heart rate, reduced blood pressure, and a decrease in stress hormones like cortisol. [4, 10] Studies have shown that regular practice can significantly reduce perceived stress and anxiety, improve cardiovascular function, and even enhance lung capacity. [1, 14, 15] By harmonizing the left and right hemispheres of the brain, it promotes a state of calm alertness that allows you to drift off to sleep more easily. [9, 21]
A Step-by-Step Guide
Ready to try it? Find a comfortable seated position, either on the floor or in a chair, ensuring your spine is straight. [1] Let your left hand rest on your left knee. [1] Bring your right hand up to your face and fold your index and middle fingers down toward your palm, leaving your thumb, ring finger, and pinky finger extended. This hand position is known as Vishnu Mudra. You will use your thumb to close your right nostril and your ring finger to close your left. [17, 18] 1. Take a deep exhale through both nostrils to begin. [3] 2. Use your right thumb to gently close your right nostril. [1] 3. Inhale slowly and steadily through your open left nostril. [1] 4. Close your left nostril with your ring finger, so both nostrils are now held closed. Pause for a moment. [1, 13] 5. Release your thumb from the right nostril and exhale slowly through the right side. [1, 13] 6. Inhale deeply through the now-open right nostril. [1] 7. Close the right nostril again with your thumb and pause briefly. [1, 13] 8. Release your ring finger to open the left nostril and exhale completely. [1, 13] This completes one full cycle. [1] Aim to continue this pattern for 5 to 10 minutes, focusing on a smooth, even breath without any strain. [4, 8]
Tips for a Restful Practice
To get the most out of your practice, consistency is more important than duration. Even a few minutes each night can make a difference. It's best to practice on an empty stomach. If you feel congested, it’s better to wait until you can breathe clearly. [1, 5] The key is to keep the breath gentle and natural, avoiding any force. [8] If you find your mind wandering during the practice, simply guide your focus back to the sensation of the breath moving in and out. The goal is not to stop your thoughts, but to give your mind a calming anchor. Over time, you may find you can lengthen your inhales and exhales, deepening the relaxation effect. Always complete your practice by finishing with an exhale on the left side. [1]
