Happiness is just a deep breath away, author says

“Our breath is this extremely powerful tool that allows us to access full functions in our bodies that nothing else can,” Nestor said. “About 30 pounds of air enters in and out of our lungs every day. And how we take that air in and how we exhale it determines so much of our mental wellbeing, our physical health, and even our life span. But here's the bad news. The vast majority of us are breathing all wrong.”

The author is quick to disclaim good breathing habits as a cure-all. He also acknowledges much of what is in his book has been known to science for decades — and was understood by ancient cultures long before. Nestor’s book punctuates the science with storytelling, from primitive burial grounds to polluted Brazilian streets to deep-sea dives off the coast of Greece. His assembly talk deftly interwove anecdotes like those with data and was structured around four basic recommendations: Breathe through the nose, not the mouth; breathe slow and steady; exercise your breathing “muscles” by chewing; and become aware of your breathing patterns.

“When you breathe through the mouth, it's almost like your lungs are an external organ,” Nestor said. “They're exposed to everything in the environment: dust, pathogens, viruses, bacteria, and more. And mouth breathing leads to a number of severe health problems.”

Nestor said between 25% and 50% of the population habitually breathes through the mouth, and that is an extremely inefficient way to supply oxygen to the brain. “When we breathe air through our nose, we push it through a bunch of different structures, and those structures heat the air up; they humidify it; they pressurize it; and they condition it, so that by the time it enters our lungs, we get about 25% more oxygen breathing through our nose than we do equivalent breaths through our mouth.”

Nestor said science shows that a respiration rate of about five to six breaths per minute — about five to six seconds to inhale, five to six seconds to exhale — is ideal. That pattern lowers heart rates and blood pressure and feeds more oxygen to our brains. That allows our brains to operate at peak efficiency.

“I'm not saying that nasal breathing is going to cure you of all issues you've ever had, but it can only have benefits, and for some people it can be transformative,” Nestor said.

“The more we understand our breathing, the more we acknowledge it, and the more we use it, we can either reduce the symptoms of several chronic problems, or in some extraordinary cases, eliminate them all together.”