A May 2021 study at the University of Colorado Boulder and the Broad Institute of MIT and Harvard said,
"We have known for some time that there is a relationship between sleep timing and mood, but a question we often hear from clinicians is: How much earlier do we need to shift people to see a benefit?"
"We found that even one-hour earlier sleep timing is associated with significantly lower risk of depression."
"Our genetics are set at birth so some of the biases that affect other kinds of epidemiological research tend not to affect genetic studies,"
"We live in a society that is designed for morning people, and evening people often feel as if they are in a constant state of misalignment with that societal clock,"
"Keep your days bright and your nights dark,”
"Have your morning coffee on the porch. Walk or ride your bike to work if you can, and dim those electronics in the evening."