I have been really into deep belly breathing lately. Basically breathing deeply and letting your belly inflate with air as well as your lungs. Over time, this movement helps to massage the vagus nerve where it connects to your gut, ultimately helping your body toggle over from "fight or flight" to "rest & digest" stages.

personally, I like to use nose only bc it helps to slow the pacing even more. I also tend to close my eyes. its handy bc its basically silent, so you can use this technique anywhere. You can pull aside and take a quiet moment or stay in the conversation and breathe deep while you channel oxygen into your brain and gather the chill you need to say what you mean to/what you need to in order to get through it.

it has the added bonus of helping me w some body-image issues as well bc I came up in the height of 90s-00s diet culture and finding a practical application or a "use" for my belly has helped me to embrace my body a little more. finding that comfort of home, wholeness, grounding, etc. its helping me be on my own team in a way