Smart bracelets are very popular nowadays. Many people have a smart bracelet that can be used to count steps, measure heart rate, and even check the quality of sleep. But can a small bracelet really detect our sleep? Do you believe that noise may also help sleep? How do light and sound affect sleep? What are the effects of lack of sleep?

1. What are the problems caused by lack of sleep?

If it is a short-term lack of sleep, it can lead to a decline in memory and brain function; a long-term lack of sleep can cause mental problems, anxiety, depression, and even changes in blood sugar and blood pressure. Long-term lack of sleep in children and adolescents will affect their development and even their personality.

2. What factors affect sleep?

How does light affect our sleep? The secretion of many hormones in our body is affected by natural light, which affects sleep by affecting the rhythm of hormones in the body. Especially with the mobile phone, the light in it will also affect sleep. The light in the mobile phone stimulates us through the optic nerve and affects the brain structure and sleep of our brain. People with sleep problems are advised not to look at electronic products before going to bed, because blue light will directly stimulate our optic nerve and affect the structure and rhythm of sleep in the brain.

3. How does sound affect people's sleep?

Sound affects some of the auditory centers of our brain through our auditory nerves and affects our sleep. If some sound itself is noise, it can also cause the disorder of the secretion of hormones in our body, affect the auditory center of our brain, and interfere with our sleep.

Some people use white noise to help sleep, mainly through the boring effect of this noise to affect our sleep. Many people with insomnia cannot sleep because they are thinking about things. If there is noise that affects the process of thinking about things, they do not want to worry about things, and they will go to bed very boring. It is not the sound itself that helps you sleep, but the sound interferes with your thinking, or interferes with mild irritability. Instead of thinking about things that need to be focused and focused on thinking, it adjusts sleep. So now it is said that turning over or practicing Tai Chi legs, yoga, or mindfulness is helpful for sleep. It is not through nerves, it is through letting you not think about the things that make you sleepless, because we give up thinking about those things and we want to sleep. Up. Noise makes us get rid of the problems that require concentration and becomes boring, thereby helping us sleep.

4. Can the smart bracelet detect sleep?

The detection of the wristband is not as scientific as the sleep EEG detection. The detection of the wristband is only to judge whether we are asleep by wearing it on the hand. If I wear a bracelet and let my hand stand still, its judgment is also asleep. Therefore, it is an indirect detection of our sleep, and the true standard for measuring our sleep is the sleep EEG, because the brain electrical discharge of the brain is different when we fall asleep and when we wake up. But if we normal people treat it as a toy, as an auxiliary tool for physical exercise, we can see if it is possible.