2016 December

Rhythm of breathing affects memory and fear

Northwestern Medicine scientists have discovered for the first time that the rhythm of breathing creates electrical activity in the human brain that enhances emotional judgments and memory recall.

“One of the major findings in this study is that there is a dramatic difference in brain activity in the amygdala and hippocampus during inhalation compared with exhalation,” said lead author Christina Zelano, assistant professor of neurology at Northwestern University Feinberg School of Medicine. “When you breathe in, we discovered you are stimulating neurons in the olfactory cortex, amygdala and hippocampus, all across the limbic system.”

“If you are in a panic state, your breathing rhythm becomes faster,” Zelano said. “As a result you’ll spend proportionally more time inhaling than when in a calm state. Thus, our body’s innate response to fear with faster breathing could have a positive impact on brain function and result in faster response times to dangerous stimuli in the environment.”

http://medicalxpress.com/news/2016-12-rhythm-affects-memory.html

 

Baby Exoplanets Carve Grooves Into Their Nursery

HD 163296 is a very young star about 400 light-years from Earth. That’s pretty close as these kinds of objects go, making it a ripe target for astronomers to observe. And by young I do mean young; it’s only about 4 million years old—the Sun is literally a thousand times older than that!—so astronomers chomp at the bit to observe it. It’s a perfect opportunity to see how stars form.

http://www.slate.com/blogs/bad_astronomy/2016/12/14/alma_observations_of_hd_163296_reveal_the_presence_of_two_planets.html

 

Convenience shop items delivered by drone in US

US drone delivery service Flirtey on Monday announced that its self-piloting flying machines have whisked flu medicine, hot food and more from 7-Eleven convenience stores to customers’ homes.

http://phys.org/news/2016-12-convenience-items-drone.html#jCp

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