“Yeah. Our old friend fight or flight is essentially the…” — Stuff You Should Know at 29:51
“Yeah. Our old friend fight or flight is essentially the reason why your heart starts pounding when you're in fight or flight mode is because your sympathetic nervous system has talked to your sinoatrial node and said, hey, man, step it up. We want more heartbeats and we want stronger contractions than ever before…”
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