Get Breath

Journalist James Nestor spent years investigating how breathing practices impact our physical and mental health. Through extensive research, self-experimentation, and interviews with scientists and breathing experts worldwide, he discovered that how we breathe matters immensely for our well-being. His book — Breath: The New Science of a Lost Art — is a scientific exploration and practical guide showing how proper breathing techniques can improve sleep, boost athletic performance, reduce anxiety, strengthen immune function, and even reshape our facial structure. Nestor makes a compelling case that breathing is a hidden pillar of health that most of us get wrong, but that we can deliberately improve with profound benefits.

Four key insights from the book:

Nasal Breathing is Essential

"The nose is crucial because it clears air, heats it, and moistens it for easier absorption. Most of us know this. But what so many people never consider is the nose’s unexpected role in problems like erectile dysfunction. Or how it can trigger a cavalcade of hormones and chemicals that lower blood pressure and ease digestion. How it responds to the stages of a woman’s menstrual cycle. How it regulates our heart rate, opens the vessels in our toes, and stores memories. How the density of your nasal hairs helps determine whether you’ll suffer from asthma."

The Power of Proper Exhalation

"Normally, the blood coursing through our arteries and veins at any one time does a full circuit once a minute, an average of 2,000 gallons of blood a day. This regular and consistent blood flow is essential to delivering fresh oxygenated blood to cells and removing waste. What influences much of the speed and strength of this circulation is the thoracic pump, the name for the pressure that builds inside the chest when we breathe. As we inhale, negative pressure draws blood into the heart; as we exhale, blood shoots back out into the body and lungs, where it recirculates. It’s similar to the way the ocean floods into shore, then ebbs out."

The Perfect Breath

"The perfect breath is this: Breathe in for about 5.5 seconds, then exhale for 5.5 seconds. That’s 5.5 breaths a minute for a total of about 5.5 liters of air. You can practice this perfect breathing for a few minutes, or a few hours. There is no such thing as having too much peak efficiency in your body."

The Diaphragm is Your Second Heart

“The diaphragm lifts during exhalations, which shrinks the lungs, then it drops back down to expand them during inhalations. This up-and-down movement occurs within us some 50,000 times a day. A typical adult engages as little as 10 percent of the range of the diaphragm when breathing, which overburdens the heart, elevates blood pressure, and causes a rash of circulatory problems. Extending those breaths to 50 to 70 percent of the diaphragm’s capacity will ease cardiovascular stress and allow the body to work more efficiently.”