If you’re feeling stressed or overwhelmed, the physiological sigh is a quick, simple breathing trick that can calm your nervous system almost instantly. It’s like a built-in reset button your body already knows how to use.

Here’s how to do it:

1. Breathe in deeply through your nose until your lungs feel full.

2. Take a second, smaller breath in through your nose - this “tops off” your lungs beyond the first big inhale.

3. Slowly exhale all the air out through your mouth.

That double inhale might feel a bit unusual, but that’s the point. It fully inflates the tiny air sacs in your lungs (called alveoli), which sends a clear signal to your brain that it’s time to relax. This triggers your parasympathetic nervous system - the part responsible for calming you down.

Use this anytime you notice your breathing getting shallow, when anxiety creeps in, or right before something stressful happens. It only takes a few seconds and you can do it anywhere.

Bottom line: When your chest feels tight or your mind races, the physiological sigh is a quick tool to slow things down and get you back in control. Try it next time you need to reset - you might be surprised how much it helps.