A recent study published in Nature Climate Change reveals that repeated heat waves can significantly accelerate biological aging, comparable to the effects of long-term smoking or heavy alcohol consumption. Following 24,922 adults in Taiwan over 15 years, researchers found that frequent exposure to extreme heat can add about 8 to 12 extra days of biological age per person.
Biological age was assessed through medical tests measuring organ function, blood pressure, and inflammatory markers, rather than visible signs like wrinkles. The study tracked heat waves from 2008 to 2022, identifying a clear correlation between increased heat exposure and accelerated aging.
The ongoing rise in heat waves is attributed to climate change, with billions likely to experience extreme temperatures in the coming years. Manual laborers, rural residents, and those without air conditioning are at the highest risk, facing the most severe impacts on their health and aging processes.
Interestingly, the study notes that some populations show signs of adaptation over the years, which may be linked to improved access to cooling technology and increased awareness of heat risks. However, adaptation varies widely, leaving vulnerable groups at continued risk.
Potential solutions include urban planning initiatives like tree planting, improved public health warnings, and better workplace policies, such as mandated breaks and access to drinking water. Ultimately, addressing greenhouse gas emissions is crucial not only for environmental preservation but also for maintaining public health and mitigating accelerated aging due to climate change.
