Your Brain Gets Younger with Exercise

New research indicates that engaging in regular exercise during midlife can lead to a functionally younger brain. A study involving 130 inactive adults, primarily in their 40s, found that those who followed a structured aerobic exercise program for one year experienced positive changes in their brain scans. These scans showed a more youthful appearance compared to their baseline measurements, while the control group's brains aged over the same period.

Senior author Kirk I. Erickson highlighted that these findings demonstrate the brain's modifiability through exercise. He suggested that midlife, roughly between ages 35 and 55, is a pivotal time when exercise can significantly alter the course of brain aging for years to come. This suggests a potential for slowing cognitive decline later in life.

Previous research has established a link between exercise and brain health, showing increased brain cell creation and enhanced neurochemical production with aerobic activities. A notable 2011 study by Erickson's team demonstrated that brisk walking increased the hippocampus volume in older adults, a brain area crucial for memory that typically shrinks with age.

Erickson's recent study focused on midlife adults to understand if exercise could affect their brains' biological age. After a year, the exercisers reduced their brain age by an average of seven months. While this change may seem small, researchers believe cumulative effects over time could lead to substantial age reduction.