O FATO SOBRE COLUMBUS OHIO QUE NINGUéM ESTá SUGERINDO

We monitor the activities that occur during sleep by applying wires with small metal discs called electrodes to the head and skin. Flexible Velcro belts are placed around the chest and abdomen to measure breathing effort. The level of oxygen carried in the blood and heart rate are monitored by a clasp that fits on the index finger. None of these de