Surya Bhedan (Right Nostril Breathing or Revitalizing Breath) -
Right nostril is Pingala Nadi, which represents physical energy and body. The breath through right nostril is important for many important metabolic processes.
The purpose of the Right nostril breathing is to increase the Pranic energy , the physical energy, to revitalize the body. It increases the efficiency of digestive system, also boosts the nervous system, especially the sympathetic nervous system.

Benefits -
Prana increases in the body, increasing the vitality.
Very effective for depression, low energy.
Very effective for stress management.
Helps reducing the anxiety, depression and other mental illnesses.
Balancing Ida and Pingala removes all the blockages in the pranic energy channels, which may lead to spiritual awakenings.
It gives all the benefits of Deep breathing as well.