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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
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.
Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.
The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.