Above all else we need good levels of air in our bloodstream to deliver water and nutrition to the needy areas of the body.
The better the level of air I find, the thirstier I get. But then the doctor I saw 10 or so years ago reckoned I'm a dried up Irishman in any case, so maybe it's more pertinent for me to get more air in so that I can drink more water.
Unfortunately we are taught to 'Breathe in deeply', rather than 'Breathe out deeply!'
The Police Department are on the right track for a different reason, they want us to breathe out the residual toxin laden air lurking in our lungs into their breathalyzer, to indicate whether or not we have been drinking alcohol or using dope. So it does pay real dividends to have a clean pair of lungs.
Any level of residual toxin in the bottom of the lungs is going to reduce the intake capacity of our breathing function, our wellbeing and the performance of body and brain.
If you want to optimize lung function you need to exhaust all that residual, toxic air lying in the bottom of the lung. That'll often mean breathing out until you're red in the face. It does for me!
You don't have to worry about the breathing in phase, but it does feel uncomfortable, some might even find it claustrophobic exhausting every last bit of residual air!
The lungs just fill up again naturally with air, after you have breathed out completely. Only then are breathing optimally.
I find through all these monitors we have nowadays that if I breathe out for twice as long as normal, say over 2 strokes instead of one, during a rowing ergometer session at low intensity, then power output will increase without any further increase in strength for a few strokes.
This breathing out technique optimizes air intake capacity, the bloods' oxygen levels, muscle contractions and energy production.
The same principles apply to the optimization of supercharged with air, high performance motors.
Combustion engines as in your motor car need a designed fuel to air ratio. When a blower forces a greater capacity of air into the motor, rather than a natural air pressure, the fuel atomizes into smaller particles and burns and cleaner.
Supercharged motors have turbines or blowers that force extra air into the fuel mix to optimize air intake capacity and fuel burning, so that there is minimal un-burnt fuel left and the engine exhausts cleaner gases for a better performance.
We get the human version of the supercharging effect by breathing out fully. That's the best way to maximize our lung capacity.
Through today's technology we can now see that access to higher power and energy sources is available through the various breathing techniques available, but you must force every skerrick of air from the lungs first.