Circulation-Enhancing Device Improves CPR

The downward push of Earth’s gravity naturally causes blood to settle in the lower areas of the human body, and occasionally, with a quick movement — such as standing up from a chair — the body is not able to adjust fast enough to deliver an adequate supply of blood to the upper parts of the body and the brain. This sudden, temporary drop in blood pressure is what causes brief feelings of lightheadedness upon standing. In essence, when the heart pumps blood to different parts of the body, it is working against the physical phenomenon of gravity in its efforts to send blood up to the brain.