WASHINGTON - Getting a good night's sleep is hard for many adults and that often means poorer health, lower productivity on the job, more danger on the roads and a less vibrant sex life.
"By 3 to 4 in the afternoon, I'm starting to feel brain-drained and I need that caffeine to pick me back up again," said Becky Mcerien, 50, of Philadelphia.
She gets about 6.5 hours of sleep a night — slightly less than the adult average of 6.9 hours reported by the National Sleep Foundation.
Many experts say adults need a minimum of seven to nine hours of sleep a night.
A poll for the foundation, released Tuesday, indicates that three-quarters of adults say they frequently have a sleep problem, such as waking during the night or snoring.
http://news.yahoo.com/news?tmpl=story&u=/ap/20050329/ap_on_re_us/lack_of_sleepThe benficial powers of darkness
For many of us, night has become day. We work, travel, shop, exercise and socialize in hours that used to be reserved for relaxation and sleep. Time is a limited resource and, to make full use of it, the night has been illuminated and occupied. Even when we do sleep, street lamps and security lights pierce the darkness.
But our freedom from the natural constraints of day and night may have come at a price. According to a growing band of scientists and doctors, many of us are no longer getting enough darkness in our lives. The theory is based on a simple premise. Our biological rhythms evolved in a time before artificial light, to take advantage of both bright days and dark nights. By succumbing to the temptations of 24-hour living, and ignoring or reducing our natural dark time, we could be putting our health at risk.
"A number of health and environmental problems are due to a loss of darkness," says Dr David Crawford, executive director of the International Dark-Sky Association, a group that campaigns against light pollution. "And it will get worse as we creep -- or rush -- to a 24/7 world. All of life, all of it, has evolved with a day/night cycle -- the circadian rhythm. It's essential to good health. Many studies are now showing that those who go without a true day/night cycle are adversely impacting their immune systems, and that's not good."
http://www.taipeitimes.com/News/edit/archives/2005/03/20/2003247056http://www.democraticunderground.com/discuss/duboard.php?az=show_topic&forum=222&topic_id=961(The Taipei Times, ten steps ahead of American Media Whores)