Heart coherence is a technique that consists of synchronizing breathing with heart rate, which produces physiological and psychological benefits. The aim of this cross-sectional study is to analyze the characteristics of electroencephalographic oscillations during the implementation of the cardiac coherence strategy in medical students. The target population are the active students of the medical program of the Universidad Tecnológica de Pereira in 2023, aged between 18 and 30 years. A sample of 20 students will be selected by a non-probabilistic convenience sampling. The variables of frontal alpha asymmetry (FAA), relative theta power (RTP), relative beta power (RBP), frontal beta asymmetry (FBA), delta coherence (DC) and theta/beta ratio (TBR) will be measured before and after the intervention. Matlab software and different toolboxes will be used for processing the information collected by a heart rate variability (HRV) sensor and skin electrodes. It is expected that cardiac coherence will produce significant changes in electroencephalographic variables, which could reflect a state of greater balance and harmony between the nervous and cardiovascular systems. These results could contribute to research in the field of neuroscience, which may lead to advances in the development of new techniques for the management of various psychiatric disorders.