腹式呼吸

Diaphragmatic breathing, often seen during NREM sleep, refers to the use of slow, deep breaths that engage the diaphragm. It's different from the shallow, chest-focused breathing often seen during REM sleep. Diaphragmatic breathing involves expanding the abdomen to fully utilize the lungs' capacity and can help to regulate the autonomic nervous system, potentially reducing stress and improving respiratory and cardiovascular function.

Google AI overview and edited