TY - JOUR AU - Johnsen, May Trude AU - Wynn, Rolf AU - Bratlid, Trond PY - 2012 DA - 2012/12/12 TI - Is there a negative impact of winter on mental distress and sleeping problems in the subarctic: The Tromsø Study JO - BMC Psychiatry SP - 225 VL - 12 IS - 1 AB - Prior studies have suggested that the darkness of winter impacts the level of mental distress and sleeping problems. Our study investigated whether people living in the sub-arctic had more sleeping problems or mental distress during winter. SN - 1471-244X UR - https://doi.org/10.1186/1471-244X-12-225 DO - 10.1186/1471-244X-12-225 ID - Johnsen2012 ER -