Why We Lose Weight When We Sleep09:39
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July 15, 2013

Why do we weigh less in the morning than we do at night?

NPR's Robert Krulwich decided to find out and he shares his findings with us.

It turns out that much of it has to do with breathing.

Guest

Robert Krulwich, co-host of WNYC’s RadioLab and writer of the “Krulwich Wonders” blog. He tweets @rkrulwich.

This segment aired on July 15, 2013.

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