You probably realize that before you go to sleep, you can seriously disturb sleep, but what you probably do not know is that reading on the screen can further damage your health.
According to a new study by Brigham and the women’s hospital in Boston, Massachusetts published in the collections of the National Academy of Sciences, using the iPad before bedtime directly affects your vigilance the next day. Of course, the study once again confirmed that using a mobile device late at night makes it difficult to fall asleep. The results were the same for those who used laptops, e-books, smartphones and similar mobile devices before bed.
This is not the first study in this field.
According to Dr. Anne-Marie Chang, an associate neurologist at the above-mentioned institution that was part of the research team, artificial light from electronic devices affects vigilance, drowsiness and reduces the level of melatonin. Interestingly, this study was based on a comparison between reading printed books and reading from a device emitting artificial light.
Those who want to use the night to regenerate their bodies, but must read something before going to sleep, must use the printed book and forget about the screens as a source for reading. Dr. Chang says that sleep is crucial to our health, because a bad dream can lead to serious health problems, such as diabetes, obesity and even cardiovascular diseases and disorders. The suppression of melatonin production was associated with an increased risk of certain cancers.
We also should not forget that sleep has many advantages.
In a two-week study involved 12 participants who read on the iPad for several hours before they go to bed five days in a row. After that, they read printed books for five days in a row. Some of them began with reading printed books and finished the study with reading from the iPad.
The results were clear. Those who read on the iPad had problems falling asleep, they felt energetic at night, and the duration of their fast sleep was very short compared to those who read printed books. IPad readers also felt tired and distracted the next day, although they had an eight-hour sleep.
Thus, reading on the screen before going to bed does not have to be an option, but people who need to check something on their mobile device late at night can do it in a safe way. The main reason for the negative effects of the screens was in the blue light emitted by the screen. Thus, placing a physical filter for iOS devices or using a special Android application that acts as a filter can reduce the negative effects.
There is an application specially designed for computers called F.lux.
Dr. Chang confirms that the best option is to completely avoid the use of light-emitting screens before going to bed, and their study also confirmed that some filters for blue light can be useful.
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