As you age, the tissue structures and muscles supporting your eyelids weaken. The skin may start to sag, and fat that is normally confined to the area around the eye (orbit) can move into the area below your eyes. Also, the space below your eyes can accumulate fluid, making the under-eye area appear puffy or swollen. Several factors can lead to this, including: 1  Fluid retention due to changes in weather (for example, hot, humid days), hormone levels or eating salty foods. 2  Not getting enough sleep. 3  Allergies or dermatitis, especially if puffiness is accompanied by redness and itching.  Heredity â under-eye bags can run in 1  families. Symptoms.
Electromyography (EMG) is an electrodiagnostic medicine technique for evaluating and recording the electrical activity produced by skeletal muscles.EMG is performed using an instrument called an electromyograph, to produce a record called an electromyogram.MG testing has a variety of clinical and biomedical applications. EMG is used as a diagnostics tool for identifying neuromuscular diseases, or as a research tool for studying kinesiology, and disorders of motor control.
What Is a Signal-Averaged Electrocardiogram? An electrocardiogram (also called EKG or ECG) is a test that records the electrical activity of your heart through small electrode patches attached to the skin of your chest, arms, and legs. An EKG may be part of a routine physical exam or it may be used as a test for heart disease. An EKG can be used to further investigate symptoms related to heart problems. EKGs are quick, safe, painless, and inexpensive tests that are routinely performed if a heart condition is suspected.