also helped my chronic acid reflux/lpr but its more of diaphragmatic breathing. its backed by research.

using phones and laptops all day stuns your brain into shallow breathing all day.when i was kid i remember my dad taking naps in the afternoon and his belly moving up and down as he slept peacefully. i dont think anyone does that anymore.

i have a pet theory that this is what is driving high gastro cancers in young ppl.