While heart attack cases are reported throughout the year, the cold weather can heighten the possibility of heart attacks, especially in people with hypertension. "In winter, the blood vessels of the ...

A risk score derived from cardiovascular reactivity to mental stress improves prediction of adverse cardiovascular outc ...

Using a new plethysmographic technique to measure peripheral arterial tone (PAT), we report here that REM sleep in humans is associated with considerable peripheral vasoconstriction. The apparatus ...

Doctors say salt worsens the effects of vasoconstriction caused by cold weather. To manage this: Use fresh ingredients to cook to avoid hidden sodium in processed foods Winter Headaches Are Real!