Another name for Sheetali pranayama is cooling breath. As the name suggests, this method helps to cool the body by stimulating temperature-regulating centers in the brain. This pranayama is helpful with appetite regulation, muscle relaxation, and reducing emotional charge. May be a helpful aid in a hot climate and can also be used as a relaxation technique before bedtime.
Shitkari or hissing breath is very similar to the Sheetali Pranayama, but instead of the rolled tongue, the teeth are used to inhale the air and create a cooling sensation in the body.