Healthy sleep is a sleep after which a person feels alert and rested. At the same time, the duration is not a determining factor in its quality: the needs for rest are individual for everyone, therefore there is no single answer for everyone how long healthy sleep should last. For…
A pulse oximeter is a medical device that measures arterial oxygen saturation. Why is this needed? The essence of the method Pulse oximetry measures arterial oxygen saturation, or saturation. The device takes measurements as a percentage and shows the ratio of oxygen-enriched hemoglobin to the amount of total hemoglobin in…
