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Did you know?

Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

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The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

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The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

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Excessive alcohol use costs the country approximately $235 billion every year.

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Vaccines prevent between 2.5 and 4 million deaths every year.

Deciduous and permanent teeth. (A) The deciduous teeth, with the age of eruption given in months; (B Deciduous and permanent teeth. (A) The deciduous teeth, with the age of eruption given in months; (B
Factors affecting vital signs of older adults Factors affecting vital signs of older adults
The skullcap from Trinil, Java is the type specimen for H. erectus and is about 900,000 years old. The skullcap from Trinil, Java is the type specimen for H. erectus and is about 900,000 years old.
Levallois points and flakes from Kapthurin, Kenya date to between 200,000 and 280,000 years ago. Levallois points and flakes from Kapthurin, Kenya date to between 200,000 and 280,000 years ago.
Literacy Development in the Early Years: Helping Children Read and Write Literacy Development in the Early Years: Helping Children Read and Write
Video: Hemodynamics Animation

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