'Support Cells' Star in Lack of Sleep's Antidepressant Effects

"For much of the 1900s, we studied neurons" to understand brain function, noted Philip Haydon. "And the reasons were purely technical. . . . We could listen to neurons, and we could talk to them." Neurons communicate electrically, and electrical recording and stimulation techniques made them amenable to studying. But in terms of what goes on in the brain, looking only at neurons is bound to deliver a minority report.