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More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

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On average, the stomach produces 2 L of hydrochloric acid per day.

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Asthma-like symptoms were first recorded about 3,500 years ago in Egypt. The first manuscript specifically written about asthma was in the year 1190, describing a condition characterized by sudden breathlessness. The treatments listed in this manuscript include chicken soup, herbs, and sexual abstinence.

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Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.

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Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

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It is important that parents repeat safety rules to preschoolers and monitor compliance with rules. It is important that parents repeat safety rules to preschoolers and monitor compliance with rules.
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Video: Bond types - Atomic structure and basis of bonds

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