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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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People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

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Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

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Illicit drug use costs the United States approximately $181 billion every year.

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Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Measures of ocean chlorophyll-a concentrations from part of Atlantic Canada in (a) January 2006, and Measures of ocean chlorophyll-a concentrations from part of Atlantic Canada in (a) January 2006, and
Granite: a Common Rock in Continental Crust Granite: a Common Rock in Continental Crust
Ocean-view Ocean-view
Humid Continental Climates with Severe Winters (D) Humid Continental Climates with Severe Winters (D)
Variations in Ocean Water Temperature With Depth Variations in Ocean Water Temperature With Depth
Three polar bears investigate an American submarine that surfaced in ice-covered Arctic waters. Three polar bears investigate an American submarine that surfaced in ice-covered Arctic waters.
Video: Mendel's Principles of Inheritance (Father of Genetics)

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