How exercise boosts memory How exercise boost memory. Exercise may be the single most powerful way to improve memory and protect against cognitive decline. In this video, we’re breaking down the three most powerful ways that exercise can benefit your brain. And make sure you stay tuned to number three because it may be the most important. Intro. In a just published 2025 meta-analysis looking at over 2700 trials and over 250,000 people researchers found that. Exercise boosted cognition and memory