First of all, it must be admitted that the alarm clock has brought a lot of use and convenience to people. Keep some early risers from oversleeping and give timely reminders to people with poor memory.
In fact, it may damage our health. While a bedside clock may be good for getting to work on time, it can lead to chronic stress if the activated state lasts days, weeks, or months. Stress can lead to high blood pressure, sleep problems and depression. If you are suddenly woken up during a "deep" sleep, your ability to think about problems will undoubtedly be severely affected as if you were drunk. Experts recommend keeping your alarm clock at least 1 meter away from your head while you sleep.
The effects of natural awakenings on the body are much milder. Teach yourself to wake up on time according to your body's internal clock -- it's important to stick to a regular routine and tell yourself to get up at a certain time. If you must set your alarm, try downloading some soothing sounds or a harmonious music from your phone. Humans never seem to wake up from a loud noise in the dark. Instead, they should wake up naturally, like our ancestors did, with a red sun rising.