By Dennis Thompson HealthDay ReporterFRIDAY, Jan. 23, 2026 (HealthDay News) — Smartwatches can greatly improve doctors’ ...

Chest pain or palpitations can signal hidden heart trouble. Know when an ECG test is needed, what results show, and when to seek urgent care.

Question: I'd like to learn more about supraventricular tachycardia. I've been told a couple of different views on this and it's very unsettling. My condition scares me at times. On several occasions, ...