[You're anemic, the electrocardiogram says so.].

A recent, retrospective, multicenter korean study is the first to highlight the possible application of electrocardiograms (ECGs) for the diagnosis of systemic conditions, in particular anaemia. To confirm this predictive ability, however, methodologically more valid studies are needed, on populations at greater risk and with less serious levels of anaemia. As always, in the context of human-machine interaction, the integration between technology and the clinical experience of health professionals is also necessary, the soft skills that make them superior to algorithms.