Without cortisone, the body cannot respond to stress, and a stressful event can literally kill a patient.

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 ...

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 ...

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 ...

If you’ve ever had a doctor order a blood test for you, chances are that they ran a complete blood count, or CBC. One of the most common blood tests in the world, CBC tests are run billions of times ...

Kidney function tests in the normal range can still signal risk if low for age and sex A Swedish study analyzed over 1.1 million adults using age- and sex-specific eGFR charts Adults below the 25th ...

A man who believed himself to be in perfect health received an unexpected and life-altering diagnosis after a routine ultrasound uncovered liver cancer. Despite multiple rounds of blood tests showing ...