“Breathing in a more productive fashion won’t fix everything going on around you, it offers you the mental clarity and level-headedness you need in times of turmoil. It also sends a message to your body to stay calm and focus.”
The Secret to De-Stressing: Learn to Breathe
https://www.psychologytoday.com/sg/blog/understand-other-people/202201/the-secret-de-stressing-learn-breathe?eml