Trial participants underwent a critical snow burial simulation while in a prone position covered by at least 50 cm of snow.

baseline plasma potassium level of 4.3 mmol per liter or lower. Participants were randomly assigned, in a 1:1 ratio, to a treatment regimen aimed at increasing the plasma potassium level to a high-normal level (4.5 to 5.0 mmol per liter)

“Surprisal” entering the vernacular.

Consumption of coffee and other caffeinated products may be reasonably considered in patients with AF.

COVID‐19 vaccination was associated with a graded reduction in mortality that persisted after landmark adjustment, as well as lower rates of HF admissions and revascularizations.