The Social Democrat MP representing Kalmar and serving as chair of the education committee in Parliament, Hallengren will take over as Minister for Children, the Elderly and Gender Equality.
Of all the areas that her portfolio includes, she points to issues facing the elderly as possibly the most important – issues she feels deserve more attention.
"Far too many people are worried about getting old," Hallengren said.
Hallengren has served as a minister before. From 2002 until 2006, she served in Göran Persson's government as a minister dealing with issues concerning preschool and youth, as well as adult education.