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Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

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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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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

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The human body produces and destroys 15 million blood cells every second.

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A little part of textbook image A little part of textbook image
Video: Uterine (menstrual) cycle - phases

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