Immune system

Question 1

what is the immune system

Answer 1

the bodies defence mechanism against antigens

Question 2

negative off immune system because of stress

Answer 2

can cause illness as the immune system is weakened due to stress. Stress suppresses directly and indirectly

Question 3

Direct effects on immune system

Answer 3

Cortisol produced by the HDA system and inhibits production of lymphocytes

Question 4

indirect effects of immune system

Answer 4

stress effects life styles behaviours

Question 5

links between stress and health

Answer 5

stress can effect the heart and blood vessels ( cardiovascular system ) due to stress hormones such as cortisol and adrenaline being released which causes a narrowing of the arteries which increases fatty clumps. Stress can have chronic long term and acute immediate effects on a cardiovascular system.

Question 6

Pereira et alb

Answer 6

studied HIV positive women. women who experienced many stressful life events were more likely to develop lesions on crrvix than women who experienced less stressful events.

Question 7

Strength

Answer 7

study shows link between stress and the impact on related conditions. Determines stress effects with numbers of health issues and not just cardiovascular

Question 8

dharbar et al

Answer 8

subjected rats to short term stress reponse found that this stimulated immune response which makes the immune system more effective short term

Question 9

weakness

Answer 9

negative effects of stress are mroe related to chronic stressors than acute ones. this is not yet fully understood