Yup, nothing to do with your genetic predisposition, your diet, what you drink, etc. etc. Just Climate Change matters. (Ignore the AC at home, in the car, and at work. If it is hotter outside, you will get stones…)
Climate Change May Bring More Kidney Stones
July 10, 2014 — As daily temperatures increase, so does the number of patients seeking treatment for kidney stones. In a study that may both reflect and foretell a warming planet’s impact on human health, a research team found a link between hot days and kidney stones in 60,000 patients in several U.S. cities with varying climates.
“We found that as daily temperatures rise, there is a rapid increase in the probability of patients presenting over the next 20 days with kidney stones,” said study leader Gregory E. Tasian, MD, MSc, MSCE, a pediatric urologist and epidemiologist at The Children’s Hospital of Philadelphia (CHOP), who is on the staff of the Hospital’s Kidney Stone Center as well as the Hospital’s Center for Pediatric Clinical Effectiveness (CPCE).
The study team analyzed medical records of more than 60,000 adults and children with kidney stones between 2005 and 2011 in Atlanta, Chicago, Dallas, Los Angeles and Philadelphia, in connection with weather data. Tasian and colleagues described the risk of stone presentation for the full range of temperatures in each city. As mean daily temperatures rose above 50 F (10 C), the risk of kidney stone presentation increased in all the cities except Los Angeles. The delay between high daily temperatures and kidney stone presentation was short, peaking within three days of exposure to hot days.
Link between kidney stones and high temperatures
“These findings point to potential public health effects associated with global climate change,” said Tasian. “However,” cautions Tasian, “although 11 percent of the U.S. population has had kidney stones, most people have not. It is likely that higher temperatures increase the risk of kidney stones in those people predisposed to stone formation.” Higher temperatures contribute to dehydration, which leads to a higher concentration of calcium and other minerals in the urine that promote the growth of kidney stones.
So if it is hot, and folks with kidney stone disease present more, then clearly more heat causes more kidney stones… Eureka! Correlation IS Causation!!! (At least in the land of Global Warming…)
Global warming trend and kidney stone prevalence
The study’s broader context is in patterns of global warming. The authors note that other scientists have reported that overall global temperatures between 2000 and 2009 were higher than 82 percent of temperatures over the past 11,300 years. Furthermore, increases in greenhouse gas emissions are projected to raise earth’s average temperatures by 2 to 8 F (1 to 4.5 C) by 2100.
“Kidney stone prevalence has already been on the rise over the last 30 years, and we can expect this trend to continue, both in greater numbers and over a broader geographic area, as daily temperatures increase,” concluded Tasian. “With some experts predicting that extreme temperatures will become the norm in 30 years, children will bear the brunt of climate change.”
Oh Noes! Not The Children!
Growth of kidney stones over time attributed to Global Warming.