Should we all be concerned about our cortisol levels? I took a blood stress test and spoke with experts to find out.

According to the CDC, more than 38 million people in the U.S. have diabetes, a condition that's linked with high levels of ...

"In contrast to prevailing beliefs, our finding suggests that the impact of a noisy public space on BP readings is small and ...

Don’t worry if someone’s checking your blood pressure in a loud public place.The reading they get is apt to be just a ...

A vitamin B12 blood test is one way to know if you’re B12 deficient. Some people opt for a urine test instead. Learn when levels are low, normal, or high.

According to the Centers for Disease Control and Prevention ( CDC ), ovarian cancer may cause vaginal bleeding, pelvic pain, ...

clinicians determine what are called reference intervals by measuring a blood test in a range of healthy people. They usually take the middle 95% of these healthy values and call that “normal ...

As a rule, younger people need less vitamin D than older people, regardless of sex. This article explains average vitamin D ...

Blood tests would help further narrow down the cause of fatigue. Anemia is a condition involving reduced blood capacity to transport oxygen. This results from either lower than normal levels of red ...