the.com/inhaling
The unsung first half of staying alive, performed roughly 20,000 times a day.
means Drawing air into the lungs, where oxygen gets traded for the carbon dioxide your cells want gone.
from From Latin inhalare, to breathe upon, stitching in (into) onto halare (to breathe) — the same root that gives us exhale and halitosis.
Diaphragm drives itThat dome muscle drops, lungs expand, air rushes in.
Mostly automaticBrainstem keeps you breathing while unconscious or distracted.
Slang senseEating food absurdly fast, lungs uninvolved.