Their high calcium content is usually the star of the show, but donât let it blind you to everything else in the can. 1  Sardines also deliver: 2  Selenium (69%) 3  Phosphorus (45%) 4  Iron (15%) 5  Magnesium (9%) 6  Copper (9%) 7  Zinc (8%)
Premature ventricular contractions (PVCs, PVC) are premature heartbeats originating from the ventricles of the heart. Premature ventricular contractions are premature because they occur before the regular heartbeat. Normal function of the heart. The heart has four chambers.
volatile organic compounds (VOCs) Definition. Regulated compounds that lead to the formation of ozone and smog and may be hazardous to humans. VOCs contain carbon molecules and are volatile enough to evaporate from material surfaces into indoor air at normal temperatures. They are emitted on a large scale from automotive and industrial sources.