In today's fast-paced life, people pay more and more attention to their own health, and sleep, as a key part of health, has attracted much attention. The emergence of smart watches, like a sleep monitoring expert on standby, quietly entered the public life and explained the mystery of sleep for people.
The traditional sleep monitoring methods are often complicated, and they need to go to a professional institution and fall asleep in a strange environment full of various monitoring equipment. The recorded data can only reflect the sleep situation that night, and it will greatly interfere with daily work and rest. The smart watch breaks through these limitations. It is small, light and comfortable to wear, and can fit the wrist for a long time, becoming an "invisible assistant" in people's daily life. When night falls and you are ready to fall asleep, the smart watch begins to perform its duties silently.
Its principle is based on the cooperation of multiple sensors. The first is the heart rate sensor. After falling asleep, the watch tracks the frequency change of heart beating in real time. During the sleep cycle, the heart rate is not constant, and the heart rate of active sleep (REM) fluctuates, while that of non-active sleep (NREM) is relatively stable. Through the continuous capture and in-depth analysis of heart rate data, the general outline of sleep can be preliminarily drawn. At the same time, the accelerometer and gyro sensor are added to accurately monitor the tiny movements of the body during sleep. From the amplitude and frequency of turning over to the occasional slight movements such as leg twitching, these data are like jigsaw pieces, which supplement more details of sleep state. Furthermore, some high-end smart watches are equipped with blood oxygen saturation sensors to measure blood oxygen levels regularly at night. The abnormal fluctuation of blood oxygen saturation may indicate sleep apnea and other problems, which provides important clues for early warning of health risks.
When I wake up every morning, the smart watch has already arranged a detailed sleep report in my wrist. This report clearly presents the key data such as falling asleep time, waking time, alternating cycle of light sleep and deep sleep, and the cumulative length of deep sleep. It can intuitively show the quality of your sleep last night, just like a professional and rigorous sleep tutor, and use detailed data to interpret the ups and downs of your sleep all night and help you understand the advantages and disadvantages of your sleep habits.
Moreover, the sleep monitoring function of smart watches is not limited to recording. It can also find potential changes in sleep patterns based on long-term accumulated data. When your work pressure increases, your living habits change, and your living environment changes, your sleep pattern will also change accordingly. Smart watches can keenly capture these changes, sound the health alarm for you in time, remind you to adjust your work and rest and optimize your sleeping environment, thus preventing many health risks caused by sleep problems, leading you to a better sleep experience and guarding your every day and night, every dream.
