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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
On average, the stomach produces 2 L of hydrochloric acid per day.
Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.
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