This Valentine’s Day, as we exchange stylised hearts in celebration of love, we might pause to remember that the power of the ...

Southern Methodist University biology researchers are uncovering how brain, heart, and lung connections may hold the key to ...

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Apart from the obvious and widely accepted criteria involving contour, duration, and time of appearance, other less obvious characteristics have been adduced: (1) the P-S time of the fusion beat must ...

It is driven by the sinoatrial node, a cluster of pacemaker cells that spontaneously generate electrical impulses independently of the brain. As this intrinsic electrical system does not rely on ...