We report an advance of a research project basedon the hypothesis that electrocardiograms (ECG)are easier to interpret in the frequency domain than in the time domain. This paper is aimed tomedical personnel. Methodology: 21 electrocardiograms(eighteen normal and three arrhythmic)were taken from a database of MassachusettsInstitute of Technology. and analyzed in thefrequency domain. https://parisnaturalfoodes.shop/product-category/blush-bare-peach-1205/