Yikes. In a report designed to prove the feasibility of measuring electrodermal activity on subjects going about their daily life, at least one student showed near brain-death during class.
Am I exaggerating? Yes. But, even so, brain patterns during class matched watching TV closer than any other activity on the list. Studying and homework, lab work, and socializing got more of his attention… sleep was a veritable mental work-out compared to class.
Draw whatever conclusions you will…