=== (AGENDAWATCHDOG) === Waking up just one hour earlier could reduce the risk of depression by 23 per cent, a new genetic study reveals.
Researchers at University of Colorado Boulder analysed the genetic data of nearly 840,000 adults of European ancestry.
They found a link between earlier sleep timing patterns – getting up and going to bed early – and lower risk of a ‘major depressive disorder’.
It’s possible that the greater exposure to light during the day results in ‘a cascade of hormonal impacts’ that can influence mood.
For their study, the team focused on genetics, which collectively explains somewhere between 12 to 42 per cent of our sleep timing preferences, they say. Using data from the DNA testing company 23 and Me and the biomedical database UK Biobank, the researchers assessed deidentified genetic data on these variants from the 840,000 adults.