Srinagar: With the drop in mercury to sub-freezing temperatures in Kashmir valley, Doctors Association Kashmir (DAK) on Sunday warned that chill of winter increases your risk of having a heart attack or stroke.
“You are more likely to have a heart attack or stroke during winter months,” cautioned DAK president Dr. Nisar ul Hassan in a communiqué.
“Research shows that there are up to 53 percent more heart attacks in winter than in summer,” he said.
Quoting a study published in European Journal of Epidemiology, Dr Nisar said for every 2.9-degree centigrade decline in temperature, the number of strokes in general population goes up by 11 percent. But among those already at high risk due to raised blood pressure, smoking or being overweight the increase is 30 percent.
“Frigid temperatures constrict blood vessels that increase blood pressure which makes heart attack or stroke more likely,” he said adding “the blood tends to be thicker and stickier during extreme cold which makes it easier to clot.”
Dr. Nisar said flu of winter heightens the risk of these cases. Flu causes acute and severe inflammation that builds up fat deposits in the inner walls of the blood vessels. These fat deposits dislodge and get stuck in heart or brain, where they block the blood flow.
He added lack of sunlight during winter leaves people vitamin D deficient which is associated with increased risk of dying from heart attack or stroke.
“While we can’t change the weather, we can take precautions to protect ourselves from health risks of cold weather. Keep yourself warm to prevent from the cold temperature. If you move out, dress in layers, wear a hat, gloves, and scarf. Avoid going out in chill for a walk and move your workout inside. Get your annual flu shot and don’t forget to take your vitamin D,” suggested Dr Nisar.