🧠 TIL: As #autumn and #winter bring shorter days, some people experience low mood, and a smaller number develop a more intense seasonal #depression.
Since the #1980s this has been called seasonal affective disorder. #Neuroscience professor Russell Foster discusses what researchers think drives the condition, how #circadian rhythms and light exposure fit in, and what the evidence says about treatment.
#brain #daylight #sleep #mentalhealth #light #health #science