Carbon dating reveals kidney stones are decades in the making

A pioneering Australian nuclear scientist has used carbon dating to reveal that kidney stones may grow for two decades or more before they cause symptoms.

Cola drinks may also promote more rapid kidney stone growth due to their high content of phosphoric acid, according to research by Dr Vladimir Levchenko, at the Australian Nuclear Science and Technology Organisation facility in Sydney,

In a study of a 6mm kidney stone, Dr Levchenko used accelerator mass spectrometry to analyse carbon-14 levels in the different parts of the stone and found the outside of the stone was 23 years older than its