Experts suggest don't play games before bedtime.

(compiled/wendy) A new study by the National Sleep Foundation shows that texting, watching TV and playing games are the reasons why 63% of Americans don't get enough sleep, and experts advise not to touch electronic products for one hours before bedtime.　　Many people don't know what to do except play some electronic products before bedtime, either fiddling with the ipad at the bedside, or turning on the DS, iphone or Windows Phone7 to play games until they are too tired to sleep.　　There are not a few of them, according to the survey, 1508 of the respondents aged 13-64 years, 95% of the people are in contact with electronic equipment before bedtime, most people over the age of 30 choose to lie in bed watching TV, most people under 30 are playing games, texting.　　Although the study does not say that there is a certain link between the use of electronic products and poor sleep, many experts are starting to focus on the problem, which is the time of day to relax, and what are the effects of these electronic products? "Sleeping is not like turning off the light switch, we're not sleeping on a pillow, and going to sleep is a process," said Allison Harvey, a professor of sleep and psychology at the University of California, Berkeley. If we are in a light environment, the human body can not be well relaxed and can not sleep well.　　Professor Matt Travis Bianchi, a sleep expert at Harvard Medical School, believes that bright light will keep us awake, suggesting that we can use "dampening glasses", a pair of glasses that can artificially darken light. Bianchi that light from electronic devices can affect sleep, and viewing annoying emails before bedtime can also affect sleep.　　There are also playing games can not pass a certain level of frustration, or on the internet to affect their feelings of things, these will affect sleep. Professor Harvey recommends that people spend 30-60 minutes at night to relax, listen to some light music in the dark and drink soothing tea.