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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Asthma cases in Americans are about 75% higher today than they were in 1980.
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Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.
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In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.
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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).
The Processes of Synaptic Pruning (Part 2)
How to solve optimization problems in calculus (Part 6)
How to add, subtract, multiply, and divide using the rules of significant digits (Part 1)