A recent article in the NY Times discusses the differences in childrens’ behavior depending on the timing of recess and lunch. It seems obvious, but apparently if they eat and then run out to play they rush through lunch, not necessarily finishing all their food, and many feel nauseous during recess and don’t run around as much as they’d like. This also impacts on how they feel and learn the rest of the afternoon.
The article suggests letting students have recess first and then come in for lunch. Apparently, in schools that have implemented this change, nurses report a drop in physical complaints during the day, teachers see more attentive students, and even the lost and found pile is reduced.
So, remember what your mothers and grandmothers always said – don’t jump in the pool till half an hour AFTER you’ve eaten. Or, swim first 
