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#33 - Rudy Leibel, M.D.: Finding the obesity gene and discovering leptin

The Peter Attia Drive

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How Does Double Labeled Water Work?

Doubly labelled water is a technique which uses two isotopes of water. It can be used to measure the rate of excretion from an individual's body. The heavy isotope of water, oxygen, is borne out both in urine and expired air as carbon dioxide.

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