Dr. José Luis Sevillano explained how graphene oxide intervenes in the electrical fields of cardiac tissues, eventually generating arrhythmias. Especially in athletes and people who practice sports intensely or for long periods.
He also mentions how the presence of electromagnetic fields worsens the situation and may cause sudden death.
https://truthcomestolight.com/dr-jose-luis-sevillano-on-how-graphene-oxide-triggers-arrhythmias/