With the increasing of modern technology, the more people who have a gadget, cellphone, laptop, computer, TV, console games and other electronic devices.
Because of that, many people often sleep too late due to their activity with those devices at sleep hours.
A study conducted in the United States proves that nine out of ten people said they use electronic devices such as laptops, smartphones and TV at sleep hours. As a result, approximately two thirds of those experience sleep pattern disorder.
"Unfortunately, cell phones and computers, which make our lives more productive and enjoyable, may be abused to the point that they contribute to getting less sleep at night leaving millions of Americans functioning poorly the next day," Russell Rosenberg, the vice chairman of the Washington DC-based National Sleep Foundation (NSF), said in a statement.
Dr. Charles Czeisler of Harvard Medical School who led the study said, "exposure to artificial light before going to bed can increase alertness and suppress the release of melatonin, a sleep-promoting hormone."
"Technology has invaded the bedroom. Invasion of such alerting technologies into the bedroom may contribute to the high proportion of respondents who reported they routinely get less sleep than they need," Czeisler added.
That's why experts at the National Sleep Foundation said that turning off the electronic devices one hour before sleep will improve the quality of sleep. Teenagers are recommended to get sleep around 9 hours at night. Yet the teenagers who participated in this study, only get an average of 7 hours of sleep.
According to the NSF, the lack of sleep has a negative impact to your job (or school), mood, family, driving habit, sex life and health.
Parents should supervise and provide good education for their teenagers to reduce the use of electronic devices in everyday life for things that are not productive, especially at sleep hours. "Parents should get these technologies out of the bedrooms of kids if they want them to do well (in school)," said Czeisler.