https://www.sciencenews.org/article/sleep-deprivation-hits-some-brain-areas-hard?utm_source=Society+for+Science+Newsletters&utm_campaign=376a7c876e-editors_picks_week_of_0808168_13_2016&utm_medium=email&utm_term=0_a4c415a67f-376a7c876e-104582405
Math teachers in particular may have noticed a decline in the abilities of children and stood somewhat bemused as the 'Math Wars' raged in academia (usually waged, it has be said, by people who spent little time in the trenches). I think most of us recognized that often the most pressing problem with a student who was struggling in maths was the fact that they hadn't eaten breakfast and had gone to bed at 3 in the morning.