Heart rate variability: From facts to fancies

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An audacious theory proposes the existence of a novel form of life—the nanobacteria (NB)—that is quite different from the ones already known, but is capable of infecting and damaging other beings, thus qualifying them as new agents of emerging infectious diseases. The theory is no less revolutionary than the famous germ theory of disease, which was put on solid ground by the efforts of Pasteur ...

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niost suitable, in the light of present experience, for providing the best mechanical properties, resistance to corrosion, and physiological compatibility with living tissues. In the case of implants made of metal, it is important to ensure that the components are made of material of the same composition. The ideal material has yet to be found. It should be electrolytically inert in the body, f...

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تغییرپذیری ضربان قلب Heart rate variability))

Abstract Many studies have been conducted on heart rate variability. Variability in the heart signal of two sequential beats is called heart rate variability (HRV). Short- and long- term variability reflects autonomic nervous system function, so that increased or decreased heart rate variability (HRV) is an indicator of human health. So, the analysis of these changes can predict sudden death...