Hot, humid weather may increase risk of kidney failure

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People living in Australia’s hot and humid northern regions are more likely to suffer from kidney failure than those living in cooler and less remote areas, according to a new study by the University of Queensland.

The research highlights how climate, geography, and social conditions can all affect health, especially when it comes to kidney disease.

The study, published in BMC Medicine, looked at nearly 50,000 Australian adults who began kidney failure treatment—such as dialysis or kidney transplants—between the years 2000 and 2020. Researchers used data from the six climate zones defined by the Bureau of Meteorology to explore how different weather conditions might be linked to kidney disease.

Dr. Darsy Darssan from UQ’s School of Public Health said that the highest rates of kidney failure were found in places with hot weather and high humidity.

These locations were also often rural or remote and had lower incomes, which makes health care harder to access. She explained that these findings point to major health gaps that need to be addressed, especially for people living in these hotter and more disadvantaged areas.

The study also found that kidney failure rates varied even within big cities and across different climate zones. Darwin, located in Australia’s tropical north, was identified as having the highest risk.

Dr. Nick Osborne, another researcher involved in the study, said that one possible reason for the increased risk is dehydration.

When people become dehydrated, it puts extra stress on the kidneys, and this can speed up the damage, especially in people who already have kidney problems. He also pointed out that people living in remote areas often have less access to doctors and hospitals, which can make the situation worse.

For patients on dialysis, reliable access to care is vital. During extreme weather, these patients are especially vulnerable, and without proper support, their lives can be at serious risk. Dr. Osborne said that Australia’s large and diverse geography provides a unique chance to study how climate differences affect kidney health.

Dr. Mark Tiong, a kidney specialist from the Royal Melbourne Hospital, agreed that the study shows why it’s important to look at health in a broader way. He said that planning for kidney care in the future must take into account not only medical issues but also social, psychological, and environmental factors.

As climate change continues to affect the planet, these kinds of studies will become even more important for creating fair and effective health care systems.

The data used in this study came from the Australian and New Zealand Dialysis and Transplant (ANZDATA) registry, which keeps track of kidney failure treatments across the region.

In short, this study shows that where you live in Australia can make a big difference in your risk of kidney failure. People in hot, remote areas face greater challenges, and better care and prevention programs are needed to support these communities.

For more health information, please read studies about important cause of kidney disease and Cruciferous vegetables may reverse kidney damage in diabetics.

If you care about kidney health, please read studies about High blood pressure drugs may affect kidney health and findings of Effective home remedies for kidney infections.

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