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Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

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Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

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The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

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

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There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Resource partitioning among five species of warblers feeding in North American spruce trees. Resource partitioning among five species of warblers feeding in North American spruce trees.
Fetal development of human Fetal development of human
Human Ear diagram Human Ear diagram
Important Human Viral Table Important Human Viral Table
Karl Marx (1818–1883) believed that the roots of human misery lay in class conflict, the ... Karl Marx (1818–1883) believed that the roots of human misery lay in class conflict, the ...
Human civilization developed during the most recent interglacial stage Human civilization developed during the most recent interglacial stage
Video: Sperm Formation

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