Here's another fine development in sleep science today! A new study shows that young adults, like babies, sleep better when rocked. University of Geneva neuroscientist Laurence Bayer and colleagues built a gently rocking bed and used EEG to monitor adults' brain activity as they slept. From Science News:
Study participants fell asleep faster while being rocked, the researchers found. In a stationary bed, people took an average of 16.7 minutes to reach a light stage of non-REM sleep called N2. But when rocked, the young adults hit this sleep stage after an average of 10 minutes. Rocked people also spent more time in a deep non-REM stage of sleep called N3, and had fewer wake-ups. And rocking boosted the number of sleep spindles — fast bursts of brain activity that mark good sleep.
Before people fell asleep, they learned pairs of words, and then were given a memory test the next morning. After a night of rocking, people were better at remembering the words, an improvement that suggested higher quality sleep.
"Whole-Night Continuous Rocking Entrains Spontaneous Neural Oscillations with Benefits for Sleep and Memory" (Current Biology)
I’ve had quite a few fun afternoons playing with dry ice from making spooky fog in the kitchen to exploding plastic bottles in the yard. But I’ve never had the opportunity to pour hot lava over dry ice. In this video, the lava is 1400 °C and the dry ice is -78C°. So cool! And […]
A Boston University team have developed an acoustic, 3D-printed metamaterial whose topology is such that it reflects 94% of human-audible sound; the researchers' demonstration involves inserting a ring of this stuff in a PVC pipe and blasting a speaker down one end: light and air emerges from the other end, but sound does not.
Scientists Lior Appelbaum and David Zada in Israel publish new proof that sleep serves to help our brains repair damage.
Big companies want automation on a big scale. Doing that means diving into the tricky world of machine learning and data science. And no matter what platform you’ll be implementing it on, you can learn how with the Machine Learning & Data Science Certification Training Bundle. In 48 hours and through eight courses, this bundle […]
Big systems need tight security – and the experts who can implement it. Cisco Networking Systems are the go-to providers for network infrastructure, but maintaining it takes a lot of up-to-date knowledge. If you want that knowledge right from the source, there’s an online course that can get you certified painlessly: The Foundational Cisco CCNA […]
Computer slowing down? There are a ton of reasons why that might be, especially if your unit has a few years on it. Junk files and programs can accumulate over time, some even left over from otherwise uninstalled software. This virtual debris can slow your PC down dramatically, but there’s a surprisingly quick fix. Lauded […]