Myth: Puzzles and games are great workouts for your brain.

Truth: Plain old physical exercise seems to be better for brain health than any type of mental puzzle available, according to a wealth of research. A spate of recent studies suggests that aerobic exercise — any kind of activity that raises your heart rate and gets you moving and sweating for a sustained period of time — has a significant, overwhelmingly beneficial impact on the brain.

When it comes to boosting your mood, improving your memory, and protecting your brain against age-related cognitive decline, exercise may be as close to a wonder drug as we'll get.

"Aerobic exercise is the key for your head, just as it is for your heart," wrote the authors of a recent Harvard Medical School blog post.

[Photo via Reshot]

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