Winter Blood Pressure: Seasonal Changes and Health Impacts - Cardiology

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Winter can indeed have a significant impact on blood pressure, and your observations are consistent with what many experience during colder months. The phenomenon of increased blood pressure in winter is primarily due to physiological responses to cold temperatures. When exposed to cold, the body reacts by constricting blood vessels to conserve heat, which increases peripheral resistance and, consequently, blood pressure. This is a normal physiological response, but it can be more pronounced in individuals with a history of hypertension or those who are older.

In your case, you mentioned that your blood pressure was well-controlled during the warmer months, averaging between 115-125/75-85, but has since risen to 135-145/75-90 as temperatures have dropped. This increase in systolic blood pressure (the top number) is not uncommon and can be attributed to the reasons mentioned above. It is important to note that while a temporary increase in blood pressure during winter can be expected, consistently high readings should be monitored closely.

For individuals who have previously been diagnosed with hypertension, even if they are currently within a normal range, seasonal fluctuations can pose a risk. If your blood pressure readings consistently exceed the normal range, it may be necessary to consult with your healthcare provider to discuss potential adjustments to your treatment plan. This does not necessarily mean you will need to be on medication for life, but it may indicate that your body is responding differently to seasonal changes, and your management plan may need to be adapted accordingly.

Regarding your heart rate, a resting heart rate below 60 beats per minute is known as bradycardia. In well-conditioned athletes or individuals who engage in regular cardiovascular exercise, a lower heart rate can be a sign of good cardiovascular fitness. However, if you are experiencing symptoms such as dizziness, fatigue, or shortness of breath, it would be prudent to discuss this with your healthcare provider. They can evaluate whether your heart rate is appropriate for your level of fitness and overall health.

In summary, while it is normal for blood pressure to fluctuate with the seasons, it is essential to monitor these changes, especially if you have a history of hypertension. Keeping a log of your blood pressure readings, particularly during colder months, can provide valuable information for your healthcare provider. They may recommend lifestyle modifications, adjustments to your medication, or further evaluations to ensure your blood pressure remains within a safe range. Additionally, maintaining your weight loss through regular exercise and a balanced diet will contribute positively to your overall cardiovascular health. Always consult with your healthcare provider before making any changes to your medication or treatment plan.