Study: High temperatures can accelerate biological aging at the elderly

A recent study conducted by researchers at the University of Southern California has shown that the ongoing exposure to high temperature can lead to the acceleration of biological aging in the elderly, which raises new concerns about the effect of climate change and heat waves at the public health and age at molecular level. The study indicated that people living in areas saw more than high -temperature days that it shows faster biological aging rates compared to residents of the most climate areas. Biological aging is a measure of the body’s ability to work on molecular, cellular and functional level, and it differs from the time that depends only on the date of birth. Research shows that raising the biological age from the age of age is linked to an increase in the risk of illness and premature death. The researchers analyzed the data of more than 3600 people between the ages of 56 years and older, as blood samples were collected with the participants for 6 years, with the examination of lagine changes, such as the “DNA” process affecting genetic activity without changing the genetic order itself. DNA is a chemical process in which the Metayl group is added to the DNA molecules, which affects how genes express themselves without changing their basic order. This process is also considered part of the lagine adjustments that control genetic activity, and play an important role in aging and chronic diseases. Exposure to continuous high temperatures when exposed to continuously high temperatures, the body has faced the environmental pressure that leads to physiological reactions that include oxidative stress and chronic inflammation, and this pressure can cause changes in similar patterns of DNA, which affect the regulation of genes associated with cell repair, infections and heat statement. Over time, these adjustments can accelerate biological aging, as cells become less effective in restoring themselves and more vulnerable to damage. The study indicated that the non -heat changes on the cumulative may be, that is, it is not limited to immediate exposure to heat, but can continue in the long run, which explains the connection between life in warm environments and raising biological life. These changes can also affect different body systems, such as the cardiovascular system and the immune system, which increases the risk of developing aging diseases such as heart disease and Alzheimer’s. Lagine -watches and the researchers used the ‘Lagine Watch’ to analyze the patterns of similar and biological age for the participants in each period, and compared these results to temperature data and the number of hot days recorded by the US national meteorological authority between 2010 and 2016. as physical activity, alcohol consumption and smoking. The data showed that the participants living in areas living serious heat (32 degrees Celsius or more) for a half -year period, such as Phoenix, Arizona, were more likely to increase their biological age by 14 additional months compared to those in areas where hot days are less than ten days annual. All three aging instruments used in the study also showed a link between high temperatures and biological aging. The results of one of the tools indicated that the effect could occur rapidly within short periods of up to 7 days, suggesting that the laughter changes caused by heat can accumulate over time. The study pointed out that the elderly are most vulnerable to serious heat, as their abilities to sweat and take natural cooling from the body with age, especially in environments with high humidity. According to the researchers, not only should temperatures be considered, but also to the rate of moisture, as it affects the body’s ability to cool off, such as in places with high humidity, the effectiveness of sweat decreases, which increases the risk of heat stress in the elderly. The study said that decision makers should be printed to reflect on solutions to reduce the effect of heat, such as strengthening green spaces, increasing the number of trees, and designing cities with shade methods and reducing heat absorption, especially in areas that have a continuous increase in temperatures.