In yoga the breathing techniques are called "Pranayama" , and pranayama is the real source of energy. Pranayama comprises of breathing exercise which provide oxygenated blood to our entire body and its organs. We get 54% energy from Air therefore it is very important to understand the value of Pranayama for healthy existences.
in yoga there are many kinds of breathing techniques such as
Kapalbhati Pranayama
Bhastrika Pranayama
Bahya Pranayama
Ujjaye Pranayama
Anulom Vilom Pranayama
Bhramari Pranayama
Udgeeth – (chanting the word Om)
Pranav Pranayama