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In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

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Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

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Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

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This year, an estimated 1.4 million Americans will have a new or recurrent heart attack.

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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.

Structures of the oral cavity, pharynx, and esophagus. Structures of the oral cavity, pharynx, and esophagus.
Sagittal section of the nasal cavity and pharynx. Sagittal section of the nasal cavity and pharynx.
The respiratory system. (a) Sagittal section of the head and neck, revealing the organs of the upper The respiratory system. (a) Sagittal section of the head and neck, revealing the organs of the upper
Pharynx. Pharynx.
Overview: Nose, Pharynx, Larynx, and Trachea Overview: Nose, Pharynx, Larynx, and Trachea
Pharynx Pharynx
Video: Stroke volume - contractility definition

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