12/10/2025
Very interesting!
Breathing in twice and exhaling once is a powerful stress-relief technique called the Physiological Sigh, popularized by Stanford neuroscientist Dr. Andrew Huberman, which resets your nervous system by taking two short inhales through the nose followed by one long, slow exhale through the mouth, quickly calming anxiety, lowering heart rate, and balancing oxygen/carbon dioxide levels. It works by reinflating collapsed lung air sacs (alveoli) and engaging the "rest and digest" parasympathetic nervous system, making it a fast, effective, and discreet tool for stress management.
Neuroscientists have found that taking two quick inhales through the nose followed by a long, slow exhale activates the parasympathetic nervous system, which helps calm the body almost instantly. This breathing technique, sometimes called a "physiological sigh," works by resetting the balance of oxygen and carbon dioxide in the blood, signaling the brain to relax.
Studies from institutions like Stanford University suggest that even one or two rounds of this breathing method can significantly lower heart rate and stress hormone levels. It’s a tool you can use anytime—whether in a high-pressure meeting, during a panic spike, or before sleep—to naturally bring your mind and body back into a state of calm.
