Cold showers and blood pressure

Dr. Aurélien Lorthioir, a nephrologist at the Georges Pompidou Hospital in Paris, explains that cold exposure can increase blood pressure due to vasoconstriction, a process where blood vessels narrow. This is why blood pressure tends to be slightly higher in winter than in summer.

Physiological response to cold

When taking a cold shower, the body reacts quickly to the temperature change. The small blood vessels under the skin tighten, reducing circulation to the skin's surface to minimize heat loss. This also activates the sympathetic nervous system, which can increase heart rate and blood pressure rapidly.

Risks for those with hypertension

Individuals with hypertension, especially those with cardiovascular disease, should be cautious. The sudden temperature change can strain the heart and blood vessels, requiring them to adapt quickly. Dr. Lorthioir emphasizes that cold showers are not a recognized treatment for hypertension.

Lack of scientific evidence

There is no scientific evidence supporting the long-term benefits of cold showers for controlling hypertension. No study has specifically shown that cold showers effectively lower blood pressure. Therefore, they should not be used as a substitute for prescribed treatments or lifestyle changes.

Recommended approaches for hypertension

To manage hypertension effectively, it is better to rely on proven methods such as a balanced diet, regular physical activity, weight loss if needed, reduced salt and alcohol intake, and adherence to prescribed medications. These approaches have been shown to have a sustainable impact on blood pressure.

Cold showers and individual tolerance

For individuals with isolated hypertension, cold showers may not be harmful if they are well tolerated. However, it is advisable to avoid excessively cold or abrupt showers that could cause a significant cardiovascular reaction. If any discomfort occurs or if there is uncertainty, consulting a doctor is recommended.