Stress-Busting Foods: How They Work. Foods can help tame stress in several ways. Comfort foods, like a bowl of warm oatmeal, boost levels of serotonin, a calming brain chemical. Other foods can cut levels of cortisol and adrenaline, stress hormones that take a toll on the body over time.
What Is EGR? Exhaust gas recirculation (EGR) is a system that takes exhaust gas from a dieselâs exhaust manifold and reintroduces it into the intake of the engine to reduce the combustion chamber temperature.
EKG Definition. An EKG, also called an ECG or electrocardiogram, is a recording of the heart's electrical activity. It is a quick and painless procedure. EKGs captures a tracing of cardiac electrical impulse as it moves from the atrium to thventricles. These electrical impulses cause the heart to contract and pump blood.