The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
When we inhale, [inhales] whether or not it's through our mouth or our nose, our diaphragm moves down. As a consequence, there is more space overall in the thoracic cavity. The heart gets a little bit bigger, believe it or not, volume-wise, blood flows more slowly through that large volume. And there's a signal conveyed from the nervous system to the heart to speed the heart up.
Every Sunday: the week’s new conflicts and verdict changes — and nothing else.
Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
Would love a "what would change this verdict" RSS feed. Sign me up if it exists.
And when you exhale, the diaphragm moves up. And as a consequence, there's less space in the thoracic cavity. Heart gets a little bit smaller. The existing blood volume in the heart at that time moves more quickly through that small volume, right? Given amount of blood volume, make the compartment it's in, the heart, smaller, and the blood moves more quickly through that volume. And as a consequence, the nervous system sends a signal to the heart, via the vagus and other pathways, to slow the heart down.