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Home / Health / Extended Heat Exposure Linked to Accelerated Aging Process, Study Reveals

Extended Heat Exposure Linked to Accelerated Aging Process, Study Reveals

Extended Heat Exposure Linked to Accelerated Aging Process, Study Reveals
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Health February 27, 2025 15:21

united states - New research from the University of Southern California highlights the impact of prolonged heat exposure on aging.

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A recent study conducted by the University of Southern California has found a concerning correlation between extended heat exposure and accelerated aging. The researchers analyzed the biological age of 3600 adults in the US over a six-year period, taking into account the heat index of their locations. The results indicated a hastened aging process in individuals residing in neighborhoods where the temperature exceeds 32 degrees Celsius on average.

The study further revealed that prolonged exposure to extreme heat can advance the aging process by two years, a similar effect to excessive drinking or smoking, factors which were also considered in the research. Epidemiologist Nancy Krieger emphasized that regions with frequent warm days in the US tend to exhibit poorer health profiles.

Notably, the research demonstrated that heat can negatively impact genes, leading to potential protein absorption issues. Elderly individuals are particularly vulnerable to heat compared to younger populations, as aging diminishes the body's ability to regulate temperature efficiently. Gerontologist Jennifer Ailshire explained that aging alters sweat patterns, causing slower evaporation, especially in high humidity areas, necessitating increased effort from the body to maintain cooling effects. In severe cases, prolonged heat exposure can even result in fatalities among the elderly.

However, the study does prompt some considerations. Heat is not the sole determinant of the aging process, and factors like access to air conditioning or indoor activities were not fully explored. Contrary to assumptions, individuals in warm climates like Australia or Dubai may have better heat tolerance due to adjusted lifestyles. Climate researcher Gregory Wellenius emphasized the significance of the findings, shedding light on the impact of heat on cellular functions and overall health. Social epidemiologist Mariana Arcaya agreed, noting the broader implications of heat exposure beyond survival in extreme conditions.

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