Many types of exercises are aerobic, and by definition are performed at moderate levels of intensity for extended periods.

有许多类型的运动是有氧的，根据定义，它们是长时间的中等强度运动。

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To reduce the risk of the disease accelerating, the recommendations included 60 minutes of brain exercises daily, 15 minutes of moderate-intensity physical exercise and avoidance of medications that might worsen the condition.

WSJ: New Push For Early Testing, Treatment For Dementia