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Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

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The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

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According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

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An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

Stained section of cerebral cortex from autopsy of a patient with Creutzfeldt-Jakob disease Stained section of cerebral cortex from autopsy of a patient with Creutzfeldt-Jakob disease
Single-dose drug administration: pharmacokinetic values for this drug are as follows: onset of actio Single-dose drug administration: pharmacokinetic values for this drug are as follows: onset of actio
A cross-section of the skin reveals three layers A cross-section of the skin reveals three layers
Withdrawing Medication from Single-Dose or Multiple-Dose Vials Withdrawing Medication from Single-Dose or Multiple-Dose Vials
Vertebral column. Avoid heavy pressure directly over spinous processes. Vertebral column. Avoid heavy pressure directly over spinous processes.
Cross-section of the anterior view of the female pelvis Cross-section of the anterior view of the female pelvis
Video: Type of Cell Junctions - Desmosome, Hemidesmosomes and Gap Junctions

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