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 Brain study shows differences in night owls, early risers

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moi-kilucru



Messages : 5846
Date d'inscription : 24/11/2008
Localisation : The Best in the West, MTL, QC

MessageSujet: Brain study shows differences in night owls, early risers   Sam 27 Juin - 16:23

Scientists at the University of Alberta have found there are significant differences in the way our brains function, depending on whether we are early risers or night owls.

Using magnetic resonance imaging-guided brain stimulation, neuroscientists tested muscle torque and the excitability of pathways through the spinal cord and brain.

"We found that the brains of morning people are more excitable in the morning and evening people are completely opposite," neurophysiology researcher David Collins said Tuesday.

"The evening people ... it's almost a perfect storm of excitability in the central nervous system, where the brain is maximal in the evening and the spinal cord is maximal in the evening.... They generate the most force in the evenings," he said.

"Morning people ... their brains are most excitable in the morning, but their spinal cords are most excitable in the evening," Collins said.

The results may suggest that morning people are performing below their maximum possible level at all times of the day because of this, he said.

Morning person may be steadier
If you could change morning people into evening people, maybe their performance would be best in the evening, he suggested. This doesn't mean it's necessarily better to be an evening person, he said.

"A morning person may be a more consistent, steady plodder over the course of the day," Collins said.

Kaitlin Cleveley, a sports performance researcher at the U of A, likes to begin work around 10 p.m. and go until 3 a.m.

"Anything that starts in the morning is absolutely brutal for me to try and get up and try and function," she said. This study brings new perspective to training, she said.

"It's about trying to peak the athlete.... It can help to set up a sleep program, and it can help to reduce jet lag and sort of help you to determine you know 'When should I book the flight?, When should I get there?'" Cleveley said.

The research has lots of applications, including understanding mental and physical peaks and how people can maximize performance, she said.
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