Few would dispute the importance of a good night’s sleep for the brain to function well and remain alert during the day. Power naps work well when conditions are right, according to sleep experts at Harvard University. And some people seem to get by on less sleep. Take Yachtswoman Ellen MacArthur, who sailed solo around the world, and power napped for very short periods. But what about those who have trouble sleeping at night, and who tend to nod off during the day? The normal brain requires about 8 hours of sleep nightly, to reboot, and regular interruptions could a serious trigger to bigger health problems, according to a new study.

If you tend to fall asleep during the day, you’ll be interested in new research that shows daytime sleepiness can put people at risk for cardiovascular problems. Check out the details in the December 1st issue of the journal, Sleep. Assessment of brain activity helps researchers to spot regions of the brain which differ between healthy and unhealthy sleepers. Research typically involves sleep studies, PET and MRI scans as well as follow-up care.

The 86 participants in this study averaged 47 year in age, and show daytime sleepiness decreased cardiac function. The American Academy of Sleep Medicine reported the study’s conclusion that daytime sleepiness from Obstructive Sleep Apnea or OSA, can raise the risk for cardiovascular problems.

OSA follows when tissue at the back of a person’s throat collapses and blocks the airway. Because air is blocked from reaching the lungs, sleep is disturbed. The best cure reported at this point, is a steady stream of pressurized air breathed in through a mask worn during sleep. The flow of air holds the airway open and restores normal oxygen levels.

Not sure where you stand on the awake - asleep exchange? You’ll find many more answers to this problem at SleepEducation.com - which updates information often and lists sleep facilities you can contact. Sleep well!