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ispyphysiology.com
26/06/2026
How a Swallow Slows the Heart - I Spy Physiology Blog
Like many dads, I love a little reading time with my 3-year-old before bed. Because of my work, my son and I talk about “heart beeps,” as he calls them. One night, he asked if I wanted to hear his heart beep. I said yes and laid my head on his chest.