WHY DON'T YOU BREATHE (RIGHT) ANYMORE? Children and teenagers can usually... and often have a very good RSA. RSA stands for respiratory sinus arrhythmia - a good arrhythmia that you can measure, for example, via HeartBreath and that gives you information about how fit and adaptable your heart is (still). At best it beats significantly faster when inhaling and slower when exhaling. We breathe automatically, but not automatically correctly - correct and healthy breathing must be learned (again)! The adaptability of the organism - visible especially also in the RSA - seems to decrease with age --> but the same applies here: training keeps you fit! Train yourself and take a breath from the heart... Stay healthy - HeartBreath https://www.heartbreath.app/atmung