When business researchers analyze data, they often rely on assumptions to help make sense of what they find. But like anyone else, they can run into a whole lot of trouble if those assumptions turn ...

Glomerular filtration rate (GFR) is a test that’s used to monitor kidney function in people with diabetes. A low GFR may indicate kidney disease.

Thyroid level tests, including the TSH test, can determine if your thyroid is producing too much or too little thyroid hormone. Here’s what the results mean.