To account for the sleep variable, researchers in this study kept close tabs on the duration and quality of sleep of the participants.
FORBES: Study: Receiving a Compliment has Same Positive Effect as Receiving Cash
The Flex tracks your sleep quality as well, but the approach here differs from other Fitbit products: whereas the Fitbit One and Fitbit Zip have a key you can press to enter sleep mode, the Flex has no buttons at all, so your only recourse for logging sleep is to use the app or website.
ENGADGET: Fitbit announces the Flex wristband, a $100 fitness tracker to take on the Jawbone Up
As one of the first studies to look into the role that diet plays on sleep quality, the findings are more hypothesis-generating than confirming.
And if you strap the Fitbit One to your wrist with the included armband, the device will monitor your sleep quality and wake you in the morning by vibrating.
The National Transportation Safety Board said in July that driver fatigue and other factors likely caused the crash, finding Cheung had limited opportunities for quality sleep in the days before the accident.
In many cases the quality of sleep was more important that the quantity, he said.
It is possible to boost the quality of sleep by stimulating the right region of the brain with electricity during the night.
"It really can improve not only the quality of people's sleep but also reduce their chances of having mites and infestations of bedbugs, " she said.
The younger patients getting loads of good quality sleep performed better on tests than their older colleagues who had worse quality sleep.
The successor to the best-selling Fitbit Ultra, the One tracks steps taken, distance travelled, calories burned, floors climbed and sleep quality, boasts a smaller, sleeker design, and offers protection against perspiration, rain and water.
ENGADGET: Fitbit One tracker now ready to wake you up, count your calories all day for $100
The research team are now working on a simple questionnaire can be used to measure how sleep apnoea affects quality of life.
There's no need to worry about running out of power as the high quality lithium battery allows for over 100 hours of playing time with a rumble-disabled sleep mode to extend battery life, meaning gamers can battle until they are the last man standing.
ENGADGET: Gioteck GC-2 PS3 controller tweaks pressure sensitivity on the fly, tips hat to Xbox 360
应用推荐