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.
Even short walking breaks throughout the day may have considerable effects on improving memory and cognition, says study co-leader Michael Yassa, a UCI professor.
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 fMRI, 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 are 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 Yassa.
“Improving the function of the hippocampus holds much promise for improving memory in everyday settings.”
Even short walking breaks throughout the day may have considerable effects on improving memory and cognition.
The neuroscientists found that the level of heightened connectivity predicted the degree of recall enhancement.
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.”
The researchers are extending this avenue of research.
They are 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.
Written by Brian Bell, UC Irvine
Source: UC Irvine.