My experience with my two kids and observing other children tends to lean this way, though I'm leery of accepting social science results that confirm my biases

My experience with my two kids and observing other children tends to lean this way, though I'm leery of accepting social science results that confirm my biases [1]. That sugar rushes exist is very much conventional wisdom, but I've seen any number of cases where a parent says something like "wow, so-and-so is going crazy; did they have any sugar" with "no" -> "I guess it's a mystery" and "yes" -> "oh, of course". Not definitive, but it's a similar experience I've seen with people who are critical of women drivers -- when someone drives badly, and it turns out to be a woman, the reaction is "of course" and when it's not, it is just ignored. I've had innumerable low-key evenings where children have had chocolate cake or candy before bedtime and were fine; and similarly healthy nights where they were going wild. Of course I've seen the opposite as well; just mostly uncorrelated to the food. I think if there is an effect it is probably smaller than conventionally believed. [1] The only thing I'm more leery of is social science results that contradict my biases