Explain how jet lag and shift work can be problematic for our circadian rhythms
What will be an ideal response?
* Jet lag is the temporary maladjustment that occurs when a change of time zones causes biological rhythms to be out of step and worsens with the number of time zones crossed.
* Shift work often leads to cumulative sleep loss because the shifts do not parallel the normal sleep-wake schedule; this causes people to make poor judgments and leads to shortened attention spans.
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It has been estimated that the number of items that could be stored in short-term memory to be the magic number __________
a) 5, plus or minus 4. b) 7, plus or minus 2. c) 9, plus or minus 3. d) 11, plus or minus 1.
Prenatal development that proceeds from the head downward is according to the
a. cephalocaudal pattern. b. proximodistal pattern. c. germinal pattern. d. gestational pattern.