Why Are Diabetic Patients Thirsty?
Thirst that you don’t seem to quench is a symptom of diabetes, a condition in which your body does not produce enough insulin or does not use it properly. It causes too much sugar (called glucose) to build up in your body. Too much of it in your urine draws in more water, so you pee more often. That leaves your body wanting to replace the liquid you're missing. When glucose is hyper-concentrated in the bloodstream, typically around 200 mg / dl - although this number varies from person to person, your kidney loses the ability to re-take glucose out of the water. Under normal circumstances, almost all glucose is extracted from the urine and back to the body (as is most of the water, although this depends on how hydrated it is). Since the body can no longer extract glucose from the water in the kidneys, the osmotic pressure builds up (the pressure that forms between a liquid with a high concentration of solutes and a liquid with a low concentration). Eventually, it gets so high that the water can no longer be absorbed back into the bloodstream, and in fact it is being absorbed out of your bloodstream. Continue reading >>