By Chris Obenschain
It's 2 p.m. and you're tired. You've been busting your you-know-what since midmorning, and even though you have hours left in your day, you're mentally and physically exhausted. But what if we told you there was a way to refresh and recharge -- that taking a nap could help perk you up, plus it could boost your memory, creativity and even lower your blood pressure? So could you spare 90 minutes? No? What about 60 minutes? Or 25, 10, or 6? Yes, really -- six minutes. And there's...
Chronotherapy: A behavioral technique in which bedtime is gradually adjusted; used in cases when the patient's sleep-wake pattern is out of synch with the external environment.
Circadian rhythms: Biological rhythms that include the internal clock which influences when, how much, and how well people sleep.
Cognitive therapy: In some cases of insomnia, this therapy includes interventions that are meant to help people identify and correct inappropriate thoughts and beliefs that may contribute to their sleep problems.
CPAP (continuous positive airway pressure): A device that is an effective treatment for sleep apnea patients; delivers air into airways through a specially designed face or nasal mask or pillows.
Periodic Limb Movement Disorder (PLMD): A disorder in which rhythmic jerking of the legs interrupts sleep, causing insomnia and/or excessive daytime sleepiness.
Parasomnias: Abnormal behaviors during sleep that interrupt sleep and can result in injury, insomnia, and/or excessive daytime sleepiness.
Polysomnography: A test that records aspects of sleep (for example, the amount of NREM and REM sleep, number of arousals) and a variety of body functions during sleep, including breathing patterns, heart rhythms, and limb movements.