Blar i forfatter "Johnsen, May Trude"
-
The effect of sleeping patterns on mental distress and overweight risk under shifting light conditions in north Norway: Some findings from the Tromsø Study
Johnsen, May Trude (Doctoral thesis; Doktorgradsavhandling, 2013-06-28)This dissertation presents the results from three studies that aimed to investigate sleep-wake rhythms and certain health risks in a subarctic community. Sleep timing and duration are influenced by outdoor light, and the darkness of winter has been found to impact the level of mental distress and sleeping problems. Sleep duration, chronotype (preference for being active during the morning or evening) ... -
Is there a negative impact of winter on mental distress and sleeping problems in the sub-arctic?
Johnsen, May Trude; Wynn, Rolf; Bratlid, trond (Journal article; Tidsskriftartikkel; Peer reviewed, 2012) -
Optimal sleep duration in the subarctic with respect to obesity risk is 8-9 hours
Johnsen, May Trude; Wynn, Rolf; Bratlid, Trond (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)Sleep duration, chronotype and social jetlag have been associated with body mass index (BMI) and abdominal obesity. The optimal sleep duration regarding BMI has previously been found to be 7–8 hours, but these studies have not been carried out in the subarctic or have lacked some central variables. The aims of our study were to examine the associations between sleep variables and body composition ...