
Monday Blues: Higher Risk of Deadly Heart Attacks Found in Study
A new study by the British Heart Foundation has found that the most dangerous type of heart attack, known as a STEMI, is more likely to occur on a Monday than any other day of the week. Researchers were surprised to discover an unusual uptick in STEMI heart attacks on Sundays, too. The increase in STEMI heart attacks is related to stress hormones, and an increase in the stress hormone cortisol may be behind an increase in heart attacks occurring on Mondays. The exact mechanism for these variations is unknown, but it is presumed to have something to do with how the circadian rhythm affects circulating hormones that can influence heart attacks and strokes.

