Mapping the circuit of our internal clock

(Harvard John A. Paulson School of Engineering and Applied Sciences) Researchers have shown for the first time how neurons in the SCN are connected to each other, shedding light on this vital area of the brain. Understanding this structure -- and how it responds to disruption -- is important for tackling illnesses like diabetes and posttraumatic stress disorder. The scientists have also found that disruption to these rhythms such as shifts in work schedules or blue light exposure at night can ne...