Extended Exhale Breath
Here is another breathing technique from the New York Times best selling book, Breath: The New Science of a Lost Art, by James Nestor.
Breathe in for three seconds then exhale for four seconds
Then breathe in for the same 3 seconds and exhale for 5 seconds
Then breathe in for 3 seconds and exhale for 6 seconds
Continue this 3 second inhale and extension of the exhale by one second for as long as you can until it is uncomfortable
The intention of this technique is to breathe less which increases our VO2 max, which can not only boost athletic stamina but also help us live long, healthier lives.