A complete blood count (CBC) is a common test to diagnose anemia by measuring red blood cell count, hemoglobin, and hematocrit levels. Iron deficiency is a common cause of anemia, and doctors may ...

Cortisol, also known as the stress hormone, plays a vital role in the body by maintaining blood pressure and blood sugar. It also breaks down carbohydrates, lipids (fats), and proteins. Cortisol can ...

The best at-home STD tests offer fast and accurate results, use CLIA-certified labs, and accept HSA/FSA. Most modern STD tests are highly accurate, and when conducted correctly, at-home tests estimate ...

An estradiol (E2) test measures levels of the hormone E2 in the blood. The results can reflect issues ranging from fertility problems to liver damage. The right estrogen levels are essential for ...

A hydrogen breath test can help determine if you have one of a few conditions that can affect your digestive health. It may tell you if you have too much bacteria in your gut, if you are lactose ...

Longevity isn't just about how long you live — it's also about staying healthy for as much of that time as possible. The "sit to stand" test can be a good way to figure out how healthy you are, and it ...

Millions of Americans have allergies. You might sniffle and sneeze as the seasons change or get itchy and teary-eyed when you dust the house or pet an animal. Perhaps you start wheezing when you eat a ...

How safe is your tap water? Finding out can take some time, effort, and money, but it’s worth doing. Most people on municipal water who pay their own bill should receive an annual water quality report ...