Today's episode of The Qualys is from podcast #47 – Matthew Walker, Ph.D., on sleep – Part I of III: Dangers of poor sleep, Alzheimer's risk, mental health, memory consolidation, and more.

The Qualys is a subscriber-exclusive podcast, released Tuesday through Friday, and published exclusively on our private, subscriber-only podcast feed. Qualys is short-hand for "qualifying round," which are typically the fastest laps driven in a race car—done before the race to determine starting position on the grid for race day. The Qualys are short (i.e., "fast"), typically less than ten minutes, and highlight the best questions, topics, and tactics discussed on The Drive.

Occasionally, we will also release an episode on the main podcast feed for non-subscribers, which is what you are listening to now.

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