why high blood pressure climbs in winter

3 Reasons Why High Blood Pressure Climbs in Winter

an elderly man checking his blood pressure
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There are three things you need to know about high blood pressure in winter or the so-called seasonal variation in blood pressure.

1. The cold temperature causes the blood vessel to narrow

First of all, everyone’s blood pressure is higher in winter because low temperatures cause the skin to contract to control body temperature, putting pressure on the vessels and forces them to narrow down as well. This makes the blood flow through a narrow space at a higher speed and forces the heart to pump it more forcefully and results in high blood pressure.

Therefore, not only in winter, when there are sudden changes in temperature or weather, such as a cold front or snowstorm, people should be aware of his or her blood pressure, especially for those who have cardiovascular diseases.

2. Weight gains and decreased activity level

However, low temperature is not the only reason causing seasonal variation in blood pressure. Blood pressure is affected by various factors physically and environment. As a result, weight gaining and decreased activity in winter may also be factors that lead to an increased blood pressure.

Solution? Well, we all know that it’s not easy for ordinary people to keep in good shape 24/7 throughout the whole year. Nevertheless, what we can do is maintain a certain level of non-exercise activity thermogenesis during the winter. However, f you do really care about your heart health, take blood pressure measurements regularly is another essential habit that helps you keep your heart health on track.

3. The elders need to be more aware of high blood presure in winter

There’s no clear and direct evidence of the relationship between cold temperature and high blood pressure. It is natural that human blood pressure fluctuates with the weather. However, studies show that these weather-related variations in blood pressure are more common in people age 65 and older.

In other words, compared to other ages group, there is clearer evidence that the blood pressure of elders may be affected by the temperature. A study in France also indicates that “Elderly persons may be particularly susceptible to temperature-related variations in blood pressure.” 

In conclusion, the elderly need more attention on taking care of their blood pressure in winter.

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Blood pressure: Is it affected by cold weather? – Mayo Clinic

High Blood Pressure: Can Cold Weather Raise Blood Pressure? Tips To Manage Hypertension In Winter Season (ndtv.com)