2 ms·

Mental disorders are also correlated with sleep problems; sleep-deprived brains often crave sugar. This might also be another avenue for causation.

• boombip 9y ago
  > This might also be another avenue for causation. If people with mental disorders were more sleep-deprived and then consumed more sugar, wouldn't that also show up in the data? > Although the study looked for this link, it was not seen in the data: men and women with mental disorders were not more likely to consume more sugar. A causal A > B > C link would look similar (data-wise) to a A > C link.
  • tylerhou 9y ago
    Not if A => B for only a small population of A. But in that case, you still might see a C => A link.