What do researchers know about seasonal affective disorder (SAD)? SAD is a culturally generated myth

What do researchers know about seasonal affective disorder (SAD)?



A)SAD is a culturally generated myth because there is no reliable evidence that people affected by it respond well to light therapy.


B)Light therapy effectively alleviates SAD symptoms because it causes the hypothalamus to produce decreased levels of progesterone.


C)Although light therapy helps alleviate symptoms, the biological mechanisms that might cause SAD to occur are uncertain.


D)The treatment of SAD is unique to the disorder, suggesting its symptoms and biological underpinnings are distinct from other forms of depression.