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Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

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Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

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Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

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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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In most climates, 8 to 10 glasses of water per day is recommended for adults. The best indicator for adequate fluid intake is frequent, clear urination.

Identify the structures shown below by filling in the blanks. Identify the structures shown below by filling in the blanks.
Continuous positive airway pressure (CPAP) device. The sleeping subject is receiving the benefits of Continuous positive airway pressure (CPAP) device. The sleeping subject is receiving the benefits of
Nonverbal communications convey strong, powerful messages that may be negative or positive. Nonverbal communications convey strong, powerful messages that may be negative or positive.
Skin testing. Note the spot labeled H, which is the positive histamine control, and the spot labeled ... Skin testing. Note the spot labeled H, which is the positive histamine control, and the spot labeled ...
Positive ring precipitin test. Positive ring precipitin test.
Nine labels used to identify hazardous materials in the Global Harmonization System (GHS). Top row: ... Nine labels used to identify hazardous materials in the Global Harmonization System (GHS). Top row: ...
Video: The life cycle of protein

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