For millennia, humans have had an unwritten trade deal with the microbes that inhabit our guts. We feed them fiber, and they ...

Preparing for a PET scan requires switching to a no-sugar diet the day before the scan. People with diabetes may have special instructions regarding medications. Doctors typically schedule PET ...

A new PET scan reliably detects benign tumors in the ... even though they cause symptoms due to low blood sugar levels. Once ...