Additionally, school feeding programs are increasingly being viewed as a potential safety net and as a social support measure that helps keep children in school.
The first REM sleep period usually occurs about 70 to 90 minutes after we fall asleep. A complete sleep cycle takes 90 to 110 minutes on average. The first sleep cycles each night contain relatively short REM periods and long periods of deep sleep.
The pattern is more like waking than it is like NREM sleep. In a polysomnogram it is easier to tell a person is in REM sleep by looking at the electromyogram (muscle activity) and electrooculogram (eye movement). Sleepers in the REM stage appear immobile except for their breathing and fluttering eyes.The large skeletal muscles are paralyzed (atonia).he first REM period happens 70 to 90 minutes after sleep onset. At first these REM episodes are short (a few minutes), but as the night progresses, they become longer. Most REM sleep is late in the main sleep period (close to morning). A typical adult spends about an hour and a half every night in REM.