1) The mRNA in vax causes heart cells to produce Spike proteins
2) Spike proteins attract monocytes from blood & bone marrow, which transform to macrophages upon entering heart tissue in order to "eat" the Spike proteins
3)monocyte/macrophage population causes inflammation->leads to fibrosis (microscopic scar tissue)
4)fibrosis disrupts the electrical conduction pathways of the heart, setting the stage for abnormal heart beats, triggered by: impact, electrolyte imbalances, strenuous activity, etc
5)this process was explained in detail as a warning in this research paper: https://osf.io/z64gx/