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Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

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Everyone has one nostril that is larger than the other.

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Individuals are never “cured” of addictions. Instead, they learn how to manage their disease to lead healthy, balanced lives.

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In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Sagittal section of upper respiratory system illustrating the internal anatomy of the nasal cavity, Sagittal section of upper respiratory system illustrating the internal anatomy of the nasal cavity,
Comparison of Principles of Abstinence-Only and Comprehensive Sex Education in the Public School Sys Comparison of Principles of Abstinence-Only and Comprehensive Sex Education in the Public School Sys
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Heat Exchanger Block Diagram Feedback Control System Heat Exchanger Block Diagram Feedback Control System
Female Reproductive System "الجهاز التناسلي للأنثى" Female Reproductive System "الجهاز التناسلي للأنثى"
Nervous System Regulation of the Heart Nervous System Regulation of the Heart
Video: Optic Nerve and Optic Disk Animation (Part 1 of 2)

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