Research Progress on the Effects of Temperature on Blood Pressure

Hypertension is one of the cardiovascular diseases that seriously threaten human health. Although there are a large number of epidemiological studies to analyze the relationship between temperature and blood pressure, there are few related reviews. This article reviewed the epidemiological research published on the relationship between temperature and blood pressure. The online search database includes PubMed, Web of Science, Science Direct, CNKI, and Wanfang. The method used for the selection of literatures were based on keywords and related references, and collected all epidemiological literatures on the relationship between temperature and blood pressure published from 1980 to 2016. A total of 31 articles that met the requirements, 26 studies focused on the effects of temperature on blood pressure, 3 studies focused on the effects of extreme low temperature on blood pressure, and 2 studies focused on the effects of extreme high temperature on blood pressure. Most studies have shown an inverse correlation between temperature and blood pressure. Some studies found that temperature has a temperature threshold on the impact of blood pressure, some of which shown that when the temperature is higher than the temperature threshold, temperature and blood pressure are inversely correlated, other studies shown that when the temperature is lower than the temperature threshold, the temperature inversely correlate with blood pressure, when the temperature is higher than the temperature threshold, there is a positive correlation between temperature and blood pressure. The analysis of sub-population susceptibility is still controversial and needs future research to further confirm.