Sitting all day is bad for your brain, too

The study found that less fit students had worse long term memories than their fitter counterparts. Participants who had fatter body compositions and less aerobic capacity, performed worse a test of long-term memory. Participants were asked to memorize word pairs until they could reliably remember at least a few groups. Then, after at least 24 hours, they were asked to perform the same memory test.
“These findings contribute to a larger body of research that has begun to indicate that cardiorespiratory fitness may be important for the optimal functioning of multiple aspects of high-level cognitive and memory processes,” concluded the researchers. In other words, poor fitness impacts at least one critical area of our intelligence and could be related to even more.