Dear Dr. Roach: I have low thyroid levels. My blood tests say that the levels are OK, but I still have all the symptoms. I received biological hormones, which helped a lot, but yams bind to the ...

The U.S. health care system primarily focuses on treating illnesses rather than preventing them. Many chronic diseases, like heart disease, develop without obvious symptoms until they are advanced. A ...

Dr. Omar Al-Heeti is an assistant professor of medicine at Southern Illinois University and practices internal medicine with a specialty in infectious diseases. He received his medical degree from the ...

Normal blood sugar levels are about 70-100 mg/dL. Your blood sugar will naturally fluctuate a bit throughout the day in response to food and other factors. However, it ideally stays within a set range ...

What Is an Anion Gap? The anion gap test measures anion gap (sometimes called serum anion gap) or how much acid is in your blood. Acid levels that are higher or lower than normal can tip your doctor ...

It's a blood test that measures the amount of glucose-6-phosphate dehydrogenase (G6PD) in your body. G6PD is an enzyme that helps your red blood cells work properly. If your G6PD level is too low, you ...