How much sleep do you really need? | Sleeping with Science, a TED series | eJOY English
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How much sleep do you really need? | Sleeping with Science, a TED series

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Guide
4
High Intermediate
|
Health
You know you need to get enough sleep, but the question remains: How much is enough? Sleep scientist Matt Walker tells us the recommended amount for adults and explains why it's necessary for your long-term health.
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