Login / Signup

How people wake up is associated with previous night's sleep together with physical activity and food intake.

Raphael VallatSarah E E BerryNeli TsereteliJoan CapdevilaHaya Al KhatibAna M ValdesLinda M DelahantyDavid A DrewAndrew T ChanJonathan WolfPaul W FranksTimothy D SpectorMatthew P Walker
Published in: Nature communications (2022)
How people wake up and regain alertness in the hours after sleep is related to how they are sleeping, eating, and exercising. Here, in a prospective longitudinal study of 833 twins and genetically unrelated adults, we demonstrate that how effectively an individual awakens in the hours following sleep is not associated with their genetics, but instead, four independent factors: sleep quantity/quality the night before, physical activity the day prior, a breakfast rich in carbohydrate, and a lower blood glucose response following breakfast. Furthermore, an individual's set-point of daily alertness is related to the quality of their sleep, their positive emotional state, and their age. Together, these findings reveal a set of non-genetic (i.e., not fixed) factors associated with daily alertness that are modifiable.
Keyphrases
  • physical activity
  • sleep quality
  • blood glucose
  • body mass index
  • depressive symptoms
  • blood pressure
  • gene expression
  • type diabetes