Erasistratus, a physician, realising that the illness of Antiochus (son of Seleucus I) is lovesickness for his stepmother Stratonice, by observing that Antiochus's pulse rate rises when ever he sees her. Engraving by P. Baquoy after A. Desenne after G. de Lairesse.

Licence: Public Domain Mark

Credit: Erasistratus, a physician, realising that the illness of Antiochus (son of Seleucus I) is lovesickness for his stepmother Stratonice, by observing that Antiochus's pulse rate rises when ever he sees her. Engraving by P. Baquoy after A. Desenne after G. de Lairesse. Wellcome Collection. Source: Wellcome Collection.