How cold weather affects blood pressure level


Blood Pressure is a common health issue faced by almost 50 percent of our population. Most of the cases are of Hypertension: when the blood pressure of individuals is higher than specified limit. High Blood Pressure can cause severe afflictions, ranging from Heart and Kidney failure to damaged Arteries and Eyes. The most commonly known cause of High Blood Pressure (BP) is food.

Blood_PressureConsumption of items with high Sodium content, meaning too much salt, can cause high Blood Pressure. Other lifestyle habits such as smoking, alcohol consumption also contribute to High Blood Pressure. But there is one other cause of Hypertension that is overlooked: Cold climate.

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Research suggests that cooler temperatures can inflict a rise in Blood Pressure, making matters worse for people already affected with the condition; this can result in Strokes or Heat Attacks. This is not only limited to those patients with a history of High Blood Pressure. Even people with a usually normal Blood Pressure, ie. a blood pressure lower than 120/80mmHg, can face problems due to drop in temperatures.

Veins shrink due to sudden drop in temperature

Not only the change in temperatures but also the rate of change has an effect on your BP. The faster the changes in temperature, higher the risk of Hypertension. If the weather suddenly cools down, our veins shrink. Narrower veins mean more pressure required to push blood. This may result in increased pressure on the Heart and Veins, causing severe damage to the body. Hence, it is necessary to take extra care during winter. Elderly people are susceptible to temperature problems.

Here are a few tips to ensure that your Blood Pressure stays normal:

  • Monitor your Blood Pressure: First and foremost, check your BP regularly. An easy test will indicate if you are suffering from Hypertension already or not. With this information, it will be easier to trudge through during winter
  • Check the Salts: Especially if you are a Hypertensive patient, cut down on your salts. Consume a diet rich in nutrients which help lower the pressure; also avoid fats and sugar. Try consuming a lot of whole fruits and juices
  • Warm up: Not the kind involved in sports. Warm yourself by wearing an extra layer of wool or thermals over your clothes. This will relax your veins, resulting in a normal Blood Pressure. Scarves, caps, gloves etc. are always can help keep the chills away
  • No Smoke policy: If you are a smoker, try to avoid it during the winter. Smoking is already considered a cause for Hypertension and with winter on its side, your Blood Pressure will go up
  • No drink policy: It may soothe your throat and warm-up your body for a little while during the winter, but it does cause Hypertension. Try to avoid alcohol as much as possible; instead choose hot beverages like Tea, Coffee, etc.
  • Controlled physical activity: Continuing to remain fit during this season is a big plus which helps you stay in shape and keeps your Heart healthy. Avoid venturing outdoors early, rather go out when it is a little warmer and sunny.

(The writer is Dr Farah Ingale, Internal Medicine, Hiranandani HospitalVashi-A Fortis Network Hospital. Views expressed are personal opinion.)


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