Flying for the holidays? Eating and sleeping on an odd schedule? Jet lag and disrupted sleep have already been shown to impede memory in both humans and mice, and trans fats have also been shown to "eat away" at memory, reports Time.
Now UCLA researchers say they're seeing—at least in mice—a similar decline in memory when food is consumed during typical sleep hours. "Those animals that were misaligned show severe deficits in their recall of the training that they received," one researcher tells LiveScience.