Elementary Physiology and Hygiene

Elementary Physiology and Hygiene

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How much sleep does a grown person need? 10. Is sleep the only rest? a#39; Sermon II.a€”1. From what materials is the waste of the body repaired? What is the most important? 2. How do we take in oxygen? How do we take in food and water?

Title:Elementary Physiology and Hygiene
Author:William Thayer Smith
Publisher: - 1884


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