Aerobics Might Boost Brain Health for Older Adults

Aerobics Researchers found that, in addition to improving physical fitness, activities such as running or biking can enhance memory and brain function by increasing blood flow in specific parts of the brain.

The study authors said their findings are particularly important since staying mentally sharp is a greater concern than social security or physical health among U.S. adults aged 50 and older.

“Science has shown that aging decreases mental efficiency, and memory decline is the No. 1 cognitive complaint of older adults,” study author Sandra Bond Chapman, chief director of the Center for BrainHealth at the University of Texas, Dallas, said in a center news release. “This research shows the tremendous benefit of aerobic exercise on a person’s memory and demonstrates that aerobic exercise can reduce both the biological and cognitive consequences of aging.”

The 12-week study involved sedentary adults between the ages of 57 and 75. The participants were divided randomly into two groups: an exercise group and a comparison group that didn’t exercise. The exercise group had supervised training sessions that involved either riding a stationary bike or working out on a treadmill for one hour three times a week. The participants’ thinking ability, brain blood flow and cardiovascular fitness were assessed when the study began, after six weeks and again after 12 weeks.

“One key region where we saw increase in brain blood flow was the anterior cingulate,” study collaborator Sina Aslan, founder and president of AdvanceMRI, said in the news release. “The anterior cingulate has been linked to superior [mental ability] in late life.”

The study, published online in the journal Frontiers in Aging Neuroscience, also found that those in the exercise group who showed improvements in their memory also had increased blood flow to the hippocampus, the key brain region affected by Alzheimer’s disease.

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