Questions and CORRECT Answers
senescence - CORRECT ANSWER- some gradual changes are caused by naturally occurring
declines
what are changes in physical development also caused by? - CORRECT ANSWER- lifestyle
choices such as smoking, diet, exercise, alcohol or drug use.
peoples emotional reactions to midlife's changes depend in part on their _________-_________ -
CORRECT ANSWER- self-concept
people reach maximum height at around what age - CORRECT ANSWER- 20's
what happens when people reach around age 55? - CORRECT ANSWER- people then begin
a "settling process in which the bones attached to the spinal columns become less dense.
average height decline for men and women? - CORRECT ANSWER- women-2 inches
men- 1 inch
women are more prone to height decline due to their greater risk of what? - CORRECT
ANSWER- osteoporosis
what is osteoporosis? - CORRECT ANSWER- a condition in which the bones become
brittle, fragile, and thin, is often caused by a lack of calcium in the diet.
-has a genetic component but is one aspect of aging that can be affected by lifestyle choices.
what can reduce the risk of osteoporosis? - CORRECT ANSWER- by eating a calcium-rich
diet and by exercising regularly
,what tends to increase in middle adulthood? - CORRECT ANSWER- body fat
where does strength particularly decrease in middle adulthood? - CORRECT ANSWER-
back and leg muscles
By age sixty, what percent of their maximum strength is lost? - CORRECT ANSWER- 10%
visual activity - CORRECT ANSWER- the ability to discern fine spatial detail in both close
and distant objects
around age 40, what begins to decline? - CORRECT ANSWER- visual activity
-the shape of the eye's lens changes and its elasticity deteriorates, which makes it harder to focus
images sharply onto the retina. The lens becomes less transparents, so less light passes through
the eye.
A nearly universal change in midlife is the loss of near vision, called what? - CORRECT
ANSWER- presbyopia
what other visual activity declines during midlife? - CORRECT ANSWER- depth
perception, distance perception, and the ability to see in three dimensions all decline. the loss of
rods and a decrease in lens transparency also impairs people's ability to adapt to darkness,
making it more difficult to navigate a dark room.
what is the most frequent eye problems/diseases caused by aging? - CORRECT ANSWER-
glaucoma. if left untreated, may lead to blindness.
glaucoma - CORRECT ANSWER- occurs when pressure in the fluid of the eye increases,
either because the fluid can not drain properly or because too much is produced.
, age brings a loss of hearing, what is affected? - CORRECT ANSWER- there is a loss of cilia,
or hair cells in the inner ear, which transmit neural messages to the brain when vibrations bend
them.
presbycusis - CORRECT ANSWER- loss of the ability to hear sounds of high frequency
about what percent of people between the age of 45 to 65 suffer from presbycusis - CORRECT
ANSWER- 12%
are men or women more prone to hearing loss? - CORRECT ANSWER- men are more prone
to hearing loss than women, starting at the age of 55.
reaction time in midlife - CORRECT ANSWER- reaction time does increase, increases by
about 20 percent from age 20 to 60,
what increases reaction time? - CORRECT ANSWER- changes in the speed at which the
nervous system processes nerve impuleses
review questions:
starting at around age 40, visual activity or the ability to discern fine spatial detail in both close
and distant objects begins to decline. true or false? - CORRECT ANSWER- true
despite reaction times, why do middle-aged drives have fewer accidents than younger ones? -
CORRECT ANSWER- partly because they tend to be more careful and take fewer risks.
moreover, older driver's greater experience benefits them
review questions:
___________ occurs when the pressure of the fluid in the eye increases, either because the fluid
cannot drain properly or because too much is produced.
a. presbyopia
b. glaucoma