Tested over a period of two months: for today. 1. I purchased multiple units (for both myself and my relatives), and in order to test them, I wore one on each arm simultaneously for the duration of the night. Hence, there is a compelling case! differences in sleep phases were detected, with some correspondence being seen for the first time in the final two hours of the night period. I'm not talking about the fact that the way the phases were set for me and the people who are close to me demonstrates that the physiology of our family is different from what is generally known about human sleep for homo sapiens. I'm not talking about that. 2. If you sleep during the day, he will not notice this because you are asleep. 3. Because you use the restroom at night, he has to fix it roughly once every five times; however, this only takes a few minutes. 4. Despite the fact that I was seated in a chair at the time, I still managed to record a pulse rate that was lower than 200 beats per minute on multiple occasions.
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