FRIDAY, June 12, 2020 -- Kidney function declines naturally with age, even if a person is in good health, a new European study says.
Researchers assessed nearly 3,000 people in Norway, Germany and Iceland, age 50 and older, in order to learn more about how kidney function changes with age.
"What happens in our kidneys when we age is representative of all the other things that happen in our bodies. The kidney function deteriorates, not because we get ill, but as part of aging," said lead author Bjørn Odvar Eriksen, leader of the Metabolic and Renal Research Group at the University of Tromsø (UiT)–The Arctic University of Norway.
"There is still variation as to how quickly this happens, and we still do not have good answers as to why this variation occurs. We have examined many factors that can play a part as to why some of us experience larger loss of kidney function than others," Eriksen said in a university news release.
More than 1,600 kidney-study participants are part of the Tromsø Study -- Norway's most comprehensive population study. They were examined between 2007 and 2009, again between 2013 and 2015, and finally, between 2018 and 2020.