Modified and translated by CFJA
Does a large indoor temperature difference between winter and summer cause high blood pressure?
Living in a cold room can lead to high blood pressure, but living in a room with significant temperature differences throughout the year can also be a factor. Iff the temperature difference between summer and winter is around 4°C, blood pressure tends to remain stable. In dry summer conditions, a temperature of around 32°C is comfortable. In winter, a room temperature of 28°C allows for comfortable clothing. This temperature difference is 4°C. The Ministry of Health, Labour and Welfare recommends setting the air conditioner temperature to 28°C during summer. Maintaining a temperature difference of 4°C throughout the year leads to stable blood pressure, so a room temperature of 24°C is desirable during winter.
Taking all of the above into consideration, the recommended room temperatures for maintaining body temperature without burden on health are as follows.
- Summer: 28°C-32°C
- Winter: 24°C-28°C
In Toronto, due to the presence of central heating, it is unlikely for households to live in extremely cold rooms compared to homes in Japan. However, based on the living environments and the set temperatures reported by patients, it appears that many households set their temperatures lower than the recommended levels during both summer and winter. Sensations of temperature vary depending on the living environment and humidity, as well as the type of heating appliances used, so the mentioned values are only approximate guidelines. However, spending time in room temperatures of 19-21°C during activity, 22-25°C during meals, and 26-28°C during rest contributes to stable blood pressure. Individuals with hypertension may consider adjusting their room temperatures accordingly.
Acupuncture and moxibustion are effective for increasing body temperature.
Living in a cold room can result in decreased physical strength and reduced mental activity. Prolonged exposure can lead to pain and heaviness in the lower back and back of the head. Living and working in places where maintaining body temperature is challenging can result in circulatory and respiratory diseases. If medication (internal medicine treatment) and surgery (external treatment) do not provide relief, we strongly recommend trying acupuncture and moxibustion (internal and external treatment). Moxibustion is particularly effective for people with low body temperature. Acupuncture and moxibustion are forms of treatment that can influence internal organ function from the outside of the body. If you experience symptoms like those mentioned above, please consult our clinic for advice.