Mortality rates increase due to extreme heat and cold
"Our findings confirm the results of our previous studies, which indicated that the eld-erly and people with pre-existing medical conditions respond particularly sensitively to heat and cold," says
The elderly are particularly at risk
The mechanisms that cause these deaths, however, are not yet fully understood. Up to now it has been known that high temperatures, amongst other things, can affect the blood-clotting mechanism (haemostasis) and make the blood more viscous, thereby increasing the risk of thrombosis. Furthermore, as decreasing temperatures have an impact on blood pressure, it can be assumed that there is a link between cold temperatures and the increase in cardiovascular events and stroke.
"Our findings give an indication of the diseases that are responsible for the observed link between air temperature and death rates, and thus provide a partial explanation as to why some people react more strongly to heat or cold than others and are, therefore, exposed to a greater health risk on hot or cold days," says
The scientists plan to conduct further research into the mechanisms that may be responsible for the health effects observed during cold and, in particular, hot temperatures. They are also interested in possible interactions with air pollutants, which are required in order to predict the effects of climate change on the health of the population, especially in cities and in major conurbations.
Keywords for this news article include: Cardiology, Cardiovascular Diseases, Helmholtz Zentrum Munchen -
Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC