Are you falling asleep while looking at your smartphone ? Percentage of people who look at a computer, smartphone or tablet screen before going to bed The results of the Sleep Standard Deviation® survey conducted by Brain Sleep and targeting 10,000 people (allocated by gender, age, and prefecture) across all 47 prefectures in Japan showed that 71.3% of respondents looked at computer, smartphone, or tablet screens (hereafter referred to as "LCD screens") almost every day before going to bed, and the percentage rose to 84.1% when including those who looked at screens three or more days a week. Looking at the results by demographic, women in their 20s were the highest at 85.2% who looked at LCD screens almost every day , followed by women in their 30s at 81.1 % . These results show that it is common for most Japanese people to look at LCD screens before going to bed, with a particularly high proportion of young women looking at LCD screens before going to bed. Those who look at LCD screens before going to bed once a week or less had an average sleep time of 6 hours 58 minutes , while those who do so three or more days a week had an average sleep time of 6 hours 46 minutes, which is 12 minutes shorter. In terms of sleep deviation score, those who do so once a week or less had an average of 54.2 , while those who do so three or more days a week had an average of 49.2 . It can be said that looking at LCD screens before going to bed leads to shorter sleep time and lower quality sleep. It has long been said that blue light has a negative effect on sleep because it suppresses the secretion of melatonin, but recently there are now functions that can suppress blue light, such as night mode. The problem is not so much blue light itself, but rather that the brain cannot relax due to games, surfing the web, or emails from work, which makes it difficult to switch to sleep mode due to over-stress and over-arousal. This is especially common among women who multitask. Try to choose content that relaxes your brain before going to bed, and try not to let messages or emails notify you at night. Brain Sleep conducts sleep surveys on a scale of 10,000 people every year. We have a variety of sleep data by region, age, gender, etc. We also introduce our health management service "Sleep Standard Deviation for Biz". Please feel free to contact us at pr@brain-sleep.com
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