Kantha-kupe ksut-pipasa-nivrittih
Cessation of hunger and thrust [comes from saṁyama] on the throat centre.
The throat cavity is the place of ujjayi breathing (that is when you restrict your throat muscles until you can hear your own breathing, like the sounds of waves breaking upon a shore). Saṁyama/ concentrated meditation on this space allows you to control your appetite and do without food or water.
Damian Cadman-Jones is an authorised teacher of Prana Vashya Yoga™