Discuss the psychological impact of stress on the immune system. What are some of the variables that can affect this relationship?
What will be an ideal response?
Stress and poorer immune functioning are associated with increases in negative moods, including depression, anxiety, hostility, and anger. People who are depressed have reduced NK cell activity, lower lymphocyte response, and more white blood cells (suggesting that the body is trying harder to fight infection). Other negative moods, including anger, hostility, and anxiety, are also associated with reduced NK cell activity and immune system suppression.
Many variables affect the relationship between stress and immune function, including how much time has elapsed since the stressor occurred, how much control people believe they have over the stressor, the person's age, and the time of day. Interpersonal interactions also affect cell activity and immune functioning. Loneliness, or perceived social isolation, is also associated with many indicators of poorer immune functioning.
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a. is an organic illness. b. is apt to be created by a combination of organic and non-organic causes. c. is a non-organic problem. d. is caused by prenatal problems.
A physical examination can focus on height and weight to determine
a. prognosis. b. BMI, heart rate and rhythm, muscle tone, and strength. c. age of onset. d. medication needed.
In comparison to cones, rods ____
a. are more common toward the center of the retina b. are more sensitive to detail c. are more sensitive to dim light d. reach their peak firing levels slowly
Who best typifies someone employing divided attention?
a. Kelly, who is listening to a lecture and trying not to fall asleep b. Jay, who is listening to Eminem and studying for a math test c. Paul, who is trying to eat dinner while his little sister is playing Nintendo d. Shannon, whose computer won't boot up and she's trying to find the problem