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Did you know?
Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.
Did you know?
Cyanide works by making the human body unable to use oxygen.
Did you know?
The average adult has about 21 square feet of skin.
Did you know?
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
Did you know?
The ratio of hydrogen atoms to oxygen in water (H2O) is 2:1.