PSY BEH 103H Study Guide - Midterm Guide: Cervical Cancer, Homeopathy, Frontal Lobe

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Works to restore tissue damaged by invaders. Blood vessels in area of injury dilate causing redness and warmth. Damaged cells release enzymes that help destroy invaders. Occur when immune system attacks body, not well understood lupus, rheumatoid arthritis, multiple sclerosis. Taught rat to associate sweet water with chemical that suppressed immune system. Drank the solution and then were injected with immune suppressing drug. Immune system suppressed with just water after removing injection. Showed that medical students had more symptoms of infectious diseases before and after exams. Higher stress, higher likelihood of getting a cold. Stress increases heart rate, blood pressure, and inflammation which increases coronary artery disease. Stressors like emotional event and pain trigger asthma attack. Mothers who stress more likely to deliver preterm babies with lower birth weights. Chronic stress more damaging than acute stress. Stress contributes to development of depressive symptoms. Ptsd produces long lasting suppression of immune system.