dreams
no, you cant sleep with a stomach during pregnancy
sleep spindles
Kiwi sleep during the day. They are nocturnal birds that forage for food at night.
The Space Station and Shuttle astronauts keep Houston time, and sleep when it's night time in Texas. In the old Soviet-era Mir space station, the cosmonauts kept Moscow time. However, I believe that like ships, the ISS and Shuttle astronauts keep "watches", so that someone is awake at all times.
7pm. Our world does not turn according to our man-made clock, but is part of a universal force established billions of years earlier. In order to become healthy adults, four year old children need to get to sleep at sunset and sleep to sunrise. Our children grow whilst they sleep. The natural growth hormone is released during flaccid muscle or deep sleep. Small children also need to sleep at least 2 hours during each day as this avoids a build up of body stress.
dreams
dream
The Boogey Man
If a person watches you sleep and says they want to sleep with you, then yes, this stalker is interested. I wouldn't get too involved, however. You know how stalkers can be......
Very long and slow A+
Very long and slow A+
Very long and slow A+
Very long and slow A+
True.
During sleep, the medulla oblongata controls sleep and arousal monitoring sensors to the cortex and other parts of the body. There are cholinergic neurons in the medulla oblongata that remain active during REM sleep. When a person experiences sleep walking, these neurons become inactive which causes a person to sleep while in action.
The frequency of your brain waves during REM sleep are beta (which incidentally occurs during the waking state as well). These are low voltage, high frequency waves.
A sleep study is a test for people who suffer from insomnia. During a sleep study, the person is usually hooked up to a monitor during the night at a sleep study laboratory. During the night, the monitors check to be sure that the person is going in and out of their sleep cycles correctly, as well as monitoring the vital signs. One major diagnosis that can be discovered at sleep study labs is sleep apnea, where someone stops breathing during some periods at night.