Journal article
(Original article)

Social closeness increases salivary progesterone in humans

Publication Details
Author(s): Brown SL, Fredrickson BL, Wirth MM, Poulin MJ, Meier EA, Heaphy ED, Cohen MD, Schultheiss O
Publisher: Elsevier
Publication year: 2009
Volume: 56
Journal issue: 1
Pages range: 108-111
ISSN: 0018-506X
Language: English


We examined whether interpersonal closeness increases salivary progesterone. One hundred and sixty female college students (80 dyads) were randomly assigned to participate in either a closeness task with a partner versus a neutral task with a partner. Those exposed to the closeness induction had higher levels of progesterone relative to those exposed to the neutral task. Across conditions, progesterone increase one week later predicted the willingness to sacrifice for the partner. These results are discussed in terms of the links between social contact, stress, and health

Focus Area of Individual Faculties

How to cite
APA: Brown, S.L., Fredrickson, B.L., Wirth, M.M., Poulin, M.J., Meier, E.A., Heaphy, E.D.,... Schultheiss, O. (2009). Social closeness increases salivary progesterone in humans. Hormones and behavior, 56(1), 108-111.

MLA: Brown, Stephanie L., et al. "Social closeness increases salivary progesterone in humans." Hormones and behavior 56.1 (2009): 108-111.

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