Robert Glatter is a New York-based physician covering public health. Kidney stones--often the size of a sand grain--are one of the most painful conditions that people may experience in their lifetime.

Kidney stones are formed from calcium salts produced ... These tiny samples were then analysed by a giant machine called an accelerator mass spectrometer. This process measures the amount of ...

These stones are Often asymptomatic, but can cause abdominal pain, fever, and nausea. Gallstones are generally larger than kidney stones and the size if these stones is up to 5 cm. These stones ...

“It’s just like a giant dense egg. It’s just a big mass,” Alex’s mom ... Tasian said he is seeing more and more kids with kidney stones. The cause? A combination of factors including kids eating more ...