Tomáš, a young professor of linguistics, underwent several Holter ECGs, but nothing in the recordings indicated a more serious problem. Unpleasant irregular heartbeats, heart palpitations, were bothering him more and more, and the Kardi Ai service helped to solve his life in fear and uncertainty that something was wrong with his heart. Within a short period of time, she helped his doctor detect atrial fibrillation. Heart surgery, namely catheter ablation, followed later. Thanks to Kardi Ai, Tomáš finally figured out the reason for his problems, which could be successfully solved.