Which of the following brain mechanisms has been implicated in anorexia?
a) Starvation releases natural pain-reducing opioids producing a high which reinforces not eating.
b) With puberty, female hormones increase dramatically and damage centers which control eating in the thalamus and pituitary.
c) Excessive exercise depletes the brain of neurotransmitters utilized by areas that regulate hunger or satiation.
d) Stress-released hormones reduce the sensitivity of receptors that detect blood-sugar levels and release hormones that induce hunger.
Question 2
A large U.S. study of 80,000 students was conducted by the American College of Health Association (ACHA; 2009). What did students report regarding their health status?
a) Overall, 66 of students listed their general health as excellent or very good.
b) Overall, 27 of students listed their general health as excellent or very good.
c) Overall, 7 of students listed their general health as fair or poor.
d) A and C only
Brain mass as a function of body mass in mammals.
The Brain and It's Structures
Positron emission tomography (PET) image showing the difference in the metabolic activity of the bra
PET scan of a normal brain.
Serotonin Connections in the Brain
Scanning the Brain