Why is it possible that Canadians would suffer a greater chance of SAD than perhaps someone living in the state of Florida in the USA?
A)Depression is connected to vitamin C,and Florida produces an abundance of oranges; therefore,vitamin C is plentiful.
B)Due to the abundance of sunlight in Florida,the internal clock,the suprachiasmatic nucleus,would not be affected; therefore,SAD would not develop.
C)The long winter nights in Canada increased the production of melatonin,which results in decrease production of serotonin,causing an increase risk of depression.
D)There is no statistical difference regarding the probability of SAD developing more in Canada than in Florida.

Question

Quizplus · Accepted Answer

SAD (Seasonal Affective Disorder) is connected to the reduced exposure to sunlight, particularly during winter months. In Canada, due to its northern latitude, the amount of winter daylight is less compared to Florida. This reduced exposure leads to the increased production of melatonin, which results in decreased production of serotonin, causing an increase risk of depression. Vitamin C, as mentioned in option A, is not a significant factor in the development of SAD, and option B is incorrect because the internal clock can be affected even with abundant sunlight. Option D is incorrect because there is statistical evidence that indicates higher prevalence rates of SAD in regions farther from the equator.

Why Is It Possible That Canadians Would Suffer a Greater