Conditions like fluid imbalance or local swelling that lead to puffy or swollen eyelids can cause shadows that make the area under the eyes appear darker. Trauma (a black eye) can cause darkening of the entire eye area. Some people notice that dark circles under the eyes tend to run in families, as well. In most cases, dark circles under the eyes are not a sign of a serious medical condition.
A full-body scanner is a device that detects objects on a person's body for security screening purposes, without physically removing clothes or making physical contact. full-body scanner is a device that detects objects on a person's body for security screening purposes, without physically removing clothes or making physical contact.
A nuclear heart scan can show where the heart muscle is healthy and where it's damaged. A positron emission tomography (PET) scan is a type of nuclear heart scan. It shows the level of chemical activity in areas of your heart. This test can help your doctor see whether enough blood is flowing to these areas.