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Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

The average adult has about 21 square feet of skin.

Did you know?

There are more nerve cells in one human brain than there are stars in the Milky Way.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

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The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Human body: levels of organization. Human body: levels of organization.
Eight weeks old human embryo Eight weeks old human embryo
Sections of the Human Brain Sections of the Human Brain
Human infants are like all other placental mammals, except they are born at a less developed state. Human infants are like all other placental mammals, except they are born at a less developed state.
The Metabolism of Alcohol in the Human Body The Metabolism of Alcohol in the Human Body
Video: Biological organic compounds

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