Symptoms of a sinus infection include facial pain and pressure, nasal discharge, cough, sore throat, and nasal congestion, and can be acute (short-term) or chronic (long-term).

The Apple Watch added electrocardiogram (ECG) heart measurements in 2018, and the feature has been saving lives since. Learn how to use it.

The rhythm is classified as SVT if electrogram morphology is uniform and identical to the sinus morphology. It is classified as VT if morphology is uniform and distinctly different from the sinus ...

Our medical experts vetted the best and most popular watches that monitor heart rate on the market for 2025.

In the DIG ancillary trial, 988 patients with LVEF >45% and normal sinus rhythm at baseline were randomized to receive digoxin (4 different daily doses of digoxin 0.125, 0.25, 0.375, and 0.50 mg ...