What is the scientific basis behind the practice of alternate nostril breathing?

Alternate nostril breathing, also known as Nadi Shodhana in yoga, is based on the principle that breathing through different nostrils can influence the balance of the autonomic nervous system. This practice is believed to help regulate the body's energy flow and promote relaxation by balancing the left and right sides of the brain. While more research is needed to fully understand the scientific basis behind alternate nostril breathing, some studies suggest that it may help reduce stress and improve overall well-being.