People who include a little yoga or tai chi in their day may be more likely to remember where they put their keys. Researchers at the University of California, Irvine and Japan’s University of Tsukuba found that even very light workouts can increase the connectivity between parts of the brain responsible for memory formation and storage.
In a study of 36 healthy young adults, the researchers
discovered that a single 10-minute period of mild exertion can yield
considerable cognitive benefits. Using high-resolution functional magnetic
resonance imaging, the team examined subjects’ brains shortly after exercise
sessions and saw better connectivity between the hippocampal dentate gyrus and
cortical areas linked to detailed memory processing.
Their results were published in Proceedings
of the National Academy of Sciences.
“The hippocampus is critical for the creation of new
memories; it’s one of the first regions of the brain to deteriorate as we get
older — and much more severely in Alzheimer’s disease,” said project co-leader
Michael Yassa, UCI professor and Chancellor’s Fellow of neurobiology &
behavior. “Improving the function of the hippocampus holds much promise for
improving memory in everyday settings.”
The neuroscientists found that the level of heightened
connectivity predicted the degree of recall enhancement.
Yassa, director of UCI’s Center for the Neurobiology
of Learning and Memory and the recently launched UCI Brain Initiative, said that
while prior research has centered on the way exercise promotes the generation
of new brain cells in memory regions, this new study demonstrates a more
immediate impact: strengthened communication between memory-focused parts of
the brain.
“We don’t discount the possibility that new cells are
being born, but that’s a process that takes a bit longer to unfold,” he said.
“What we observed is that these 10-minute periods of exercise showed results
immediately afterward.”
A little bit of physical activity can go a long way,
Yassa stressed. “It’s encouraging to see more people keeping track of their
exercise habits — by monitoring the number of steps they’re taking, for
example,” he said. “Even short walking breaks throughout the day may have
considerable effects on improving memory and cognition.”
Yassa and his colleagues at UCI and at the University
of Tsukuba are extending this avenue of research by testing older adults who
are at greater risk of age-related mental impairment and by conducting
long-term interventions to see if regular, brief, light exercise done daily for
several weeks or months can have a positive impact on the brain’s structure and
function in these subjects.
“Clearly, there is tremendous value to understanding
the exercise prescription that best works in the elderly so that we can make
recommendations for staving off cognitive decline,” he said.
Source: https://news.uci.edu/2018/09/24/now-you-just-need-to-remember-to-exercise/
No comments:
Post a Comment