title: Do men's faces really signal heritable immunocompetence?
abstract: In the literature on human mate choice, masculine facial morphology is often proposed to be an intersexual signal of heritable immunocompetence, and hence an important component of men's attractiveness. This hypothesis has received considerable research attention, and is increasingly treated as plausible and well supported. In this article, we propose that the strength of the evidence for the immunocompetence hypothesis is somewhat overstated, and that a number of difficulties have been under-acknowledged. Such difficulties include (1) the tentative nature of the evidence regarding masculinity and disease in humans, (2) the complex and uncertain picture emerging from the animal literature on sexual ornaments and immunity, (3) the absence of consistent, cross-cultural support for the predictions of the immunocompetence hypothesis regarding preferences for masculinized stimuli, and (4) evidence that facial masculinity contributes very little, if anything, to overall attractiveness in real men. Furthermore, alternative explanations for patterns of preferences, in particular the proposal that masculinity is primarily an intrasexual signal, have been neglected. We suggest that immunocompetence perspectives on masculinity, whilst appealing in many ways, should still be regarded as speculative, and that other perspectives-and other traits-should be the subject of greater attention for researchers studying human mate preferences.
authors.affiliation: Department of Archaeology and Anthropology, University of Bristol , Bristol, BS8 1UU UK.
authors.forename: Isabel M L
authors.initials: IM
authors.lastname: Scott
authors.forename: Andrew P
authors.initials: AP
authors.lastname: Clark
authors.forename: Lynda G
authors.initials: LG
authors.lastname: Boothroyd
authors.forename: Ian S
authors.initials: IS
authors.lastname: Penton-Voak
keywords: attractiveness; competition; faces; female choice; humans; immunocompetence; males; masculinity; mate preferences; testosterone
references.citation: Behav Brain Sci. 1998 Jun;21(3):353-63; discussion 363-97
references.pmid: 10097017
references.citation: Hum Nat. 2006 Mar;17(1):114-27
references.pmid: 26181348
references.citation: Biol Rev Camb Philos Soc. 1995 Feb;70(1):1-65
references.pmid: 7718697
references.citation: Arch Gynecol Obstet. 2008 Oct;278(4):299-307
references.pmid: 18592262
references.citation: Proc Biol Sci. 2009 Jan 7;276(1654):153-9
references.pmid: 18796396
references.citation: Lancet. 2002 Apr 13;359(9314):1331-6
references.pmid: 11965295
references.citation: Am J Phys Anthropol. 1972 Jan;36(1):133-8
references.pmid: 5057728
references.citation: Arch Sex Behav. 2007 Feb;36(1):79-88
references.pmid: 17136591
references.citation: J Biosoc Sci. 2007 Mar;39(2):287-300
references.pmid: 16817989
references.citation: J Comp Psychol. 1994 Sep;108(3):233-42
references.pmid: 7924253
references.citation: Proc Biol Sci. 2011 Mar 7;278(1706):774-80
references.pmid: 20843854
references.citation: Perception. 2007;36(8):1244-52
references.pmid: 17972486
references.citation: Psychoneuroendocrinology. 2006 Jul;31(6):715-23
references.pmid: 16621328
references.citation: J Exp Psychol Hum Percept Perform. 2010 Jun;36(3):751-8
references.pmid: 20515201
references.citation: Evolution. 2008 Oct;62(10):2473-86
references.pmid: 18691260
references.citation: Proc Biol Sci. 2002 Jun 7;269(1496):1095-100
references.pmid: 12061950
references.citation: Proc Biol Sci. 2009 Feb 7;276(1656):575-84
references.pmid: 18945661
references.citation: J Exp Psychol Hum Percept Perform. 2008 Aug;34(4):884-93
references.pmid: 18665733
references.citation: Behav Brain Sci. 2002 Aug;25(4):489-504; discussion 504-53
references.pmid: 12879701
references.citation: Nebr Symp Motiv. 2001;47:1-36
references.pmid: 11759345
references.citation: Vision Res. 2009 Mar;49(8):862-9
references.pmid: 19285521
references.citation: Percept Mot Skills. 1994 Aug;79(1 Pt 2):507-14
references.pmid: 7808889
references.citation: Neurosci Biobehav Rev. 2006;30(3):319-45
references.pmid: 16483890
references.citation: J Exp Psychol Hum Percept Perform. 2011 Jun;37(3):626-33
references.pmid: 20822297
references.citation: Proc Biol Sci. 2001 Aug 7;268(1476):1617-23
references.pmid: 11487409
references.citation: Behav Brain Sci. 2000 Aug;23(4):573-87; discussion 587-644
references.pmid: 11301543
references.citation: Psychol Sci. 2002 Nov;13(6):532-6
references.pmid: 12430837
references.citation: Shock. 2000 Aug;14(2):81-90
references.pmid: 10947147
references.citation: Biol Lett. 2008 Dec 23;4(6):741-4
references.pmid: 18700197
references.citation: BMC Womens Health. 2010 May 27;10:19
references.pmid: 20507626
references.citation: Proc Natl Acad Sci U S A. 2008 Sep 2;105(35):12938-43
references.pmid: 18711125
references.citation: Psychol Sci. 2004 Mar;15(3):203-7
references.pmid: 15016293
references.citation: Trends Ecol Evol. 2007 Jan;22(1):48-55
references.pmid: 17028056
references.citation: Horm Behav. 2005 Sep;48(3):283-90
references.pmid: 15979620
references.citation: Science. 1985 Jan 18;227(4684):257-61
references.pmid: 3871252
references.citation: J Endocrinol. 2001 May;169(2):299-308
references.pmid: 11312147
references.citation: Hum Reprod. 2002 Jul;17(7):1906-13
references.pmid: 12093859
references.citation: Sex Roles. 2011 May;64(9-10):669-681
references.pmid: 21743770
references.citation: Perception. 2011;40(3):323-31
references.pmid: 21692423
references.citation: Am Nat. 2002 Apr;159(4):363-71
references.pmid: 18707421
references.citation: Trends Cogn Sci. 1999 Dec;3(12):452-460
references.pmid: 10562724
references.citation: Biol Lett. 2009 Feb 23;5(1):62-4
references.pmid: 19004751
references.citation: Ann N Y Acad Sci. 1994 Feb 18;709:287-98
references.pmid: 8154721
references.citation: Proc Biol Sci. 2006 Jun 7;273(1592):1355-60
references.pmid: 16777723
references.citation: Int J Primatol. 2009 Dec;30(6):845-857
references.pmid: 19946602
references.citation: Womens Health. 1998 Spring;4(1):41-70
references.pmid: 9520606
references.citation: Arch Sex Behav. 2008 Feb;37(1):78-84
references.pmid: 18193349
references.citation: Psychol Sci. 2008 Feb;19(2):145-51
references.pmid: 18271862
references.citation: Behav Brain Sci. 2009 Aug;32(3-4):249-66; discussion 266-311
references.pmid: 19691899
references.citation: Nature. 1999 Jun 24;399(6738):741-2
references.pmid: 10391238
references.citation: Evol Hum Behav. 2009 Sep 1;30(5):342-350
references.pmid: 21151758
references.citation: Soc Sci Med. 2010 May;70(9):1358-66
references.pmid: 20167407
references.citation: Proc Biol Sci. 2009 Jan 22;276(1655):347-54
references.pmid: 18826936
references.citation: J Abnorm Child Psychol. 2008 Nov;36(8):1265-78
references.pmid: 18615267
references.citation: Psychoneuroendocrinology. 2010 Jul;35(6):912-20
references.pmid: 20060226
references.citation: Anim Behav. 2000 Dec;60(6):773-780
references.pmid: 11124875
references.citation: Psychoneuroendocrinology. 2007 May;32(4):313-21
references.pmid: 17400395
references.citation: Science. 1981 Mar 20;211(4488):1285-94
references.pmid: 7010603
references.citation: Hum Nat. 2001 Sep;12(3):207-19
references.pmid: 26192277
references.citation: J Pers Soc Psychol. 2007 Jan;92(1):151-63
references.pmid: 17201549
references.citation: Proc Biol Sci. 2001 Jan 7;268(1462):39-44
references.pmid: 12123296
references.citation: Horm Behav. 2009 Jun;56(1):158-62
references.pmid: 19362091
references.citation: Immunol Rev. 2004 Apr;198:10-24
references.pmid: 15199951
references.citation: Proc Biol Sci. 2010 Aug 7;277(1692):2405-10
references.pmid: 20236978
references.citation: Horm Behav. 2009 Nov;56(5):491-7
references.pmid: 19664637
references.citation: Evol Hum Behav. 2009 Jan;30(1):1-10
references.pmid: 20046209
references.citation: J Pers Soc Psychol. 1966 Nov;4(5):508-16
references.pmid: 6008393
references.citation: Proc Biol Sci. 2006 Apr 7;273(1588):815-22
references.pmid: 16618674
references.citation: Proc Biol Sci. 2008 May 7;275(1638):991-1000
references.pmid: 18252670
references.citation: Proc Biol Sci. 2011 Mar 22;278(1707):810-2; discussion 813-4
references.pmid: 21147809
references.citation: Horm Behav. 2006 Jun;50(1):132-40
references.pmid: 16564527
references.citation: Am J Prev Med. 1999 Oct;17(3):211-29
references.pmid: 10987638
references.citation: Eur J Obstet Gynecol Reprod Biol. 2005 Feb 1;118(2):135-42
references.pmid: 15653193
references.citation: Dev Psychol. 2006 Nov;42(6):1299-312
references.pmid: 17087562
references.citation: Horm Behav. 2007 Aug;52(2):156-61
references.pmid: 17559852
references.citation: Arch Fam Med. 2000 May;9(5):451-7
references.pmid: 10810951
references.citation: Proc Biol Sci. 2011 Jul 7;278(1714):2032-9
references.pmid: 21123269
references.citation: Proc Biol Sci. 2004 Mar 22;271(1539):635-40
references.pmid: 15156922
references.citation: Integr Comp Biol. 2006 Dec;46(6):1000-15
references.pmid: 21672803
references.citation: Proc Biol Sci. 2003 Oct 22;270(1529):2167-72
references.pmid: 14561281
references.citation: Psychol Bull. 2000 May;126(3):390-423
references.pmid: 10825783
references.citation: Nature. 1998 Aug 27;394(6696):884-7
references.pmid: 9732869
references.citation: Annu Rev Psychol. 2006;57:199-226
references.pmid: 16318594
references.citation: J Comp Psychol. 2003 Sep;117(3):264-71
references.pmid: 14498802
references.citation: Horm Behav. 2007 Mar;51(3):454-9
references.pmid: 17316638
references.citation: Science. 1982 Oct 22;218(4570):384-7
references.pmid: 7123238
references.citation: Proc Biol Sci. 2004 May 7;271 Suppl 4:S233-6
references.pmid: 15252993
references.citation: Behav Ecol Sociobiol. 1990;27(4):255-64
references.pmid: 12283589
references.citation: Cognition. 2008 Mar;106(3):1537-47
references.pmid: 17707364
references.citation: Proc Biol Sci. 2006 Sep 7;273(1598):2169-75
references.pmid: 16901836
references.citation: J Pers Soc Psychol. 2006 Mar;90(3):468-89
references.pmid: 16594832
references.citation: Horm Behav. 1989 Dec;23(4):556-71
references.pmid: 2606468
references.citation: J Cogn Neurosci. 2010 Oct;22(10):2357-68
references.pmid: 19925198
references.citation: Trends Ecol Evol. 1998 Dec 1;13(12):498-501
references.pmid: 21238407
references.citation: Proc Biol Sci. 2002 Nov 22;269(1507):2285-9
references.pmid: 12495494
references.citation: Hum Nat. 2002 Dec;13(4):473-91
references.pmid: 26193091
references.citation: J Sex Res. 2004 Feb;41(1):43-54
references.pmid: 15216423
references.citation: J Pers Soc Psychol. 1990 Jul;59(1):61-72
references.pmid: 2213490
references.citation: Popul Trends. 2010 Spring;(139):11-36
references.pmid: 20379276
references.citation: Bioessays. 2007 Feb;29(2):133-44
references.pmid: 17226801
references.citation: Psychol Bull. 2005 Sep;131(5):635-53
references.pmid: 16187849
references.citation: Eur J Orthod. 1999 Apr;21(2):137-43
references.pmid: 10327737
references.citation: Psychol Sci. 2011 Sep;22(9):1183-90
references.pmid: 21852448
references.citation: Am J Hum Biol. 2010 May-Jun;22(3):348-52
references.pmid: 19830838
references.citation: Coll Antropol. 2008 Jun;32(2):457-60
references.pmid: 18756895
references.citation: Neurosci Biobehav Rev. 2011 Mar;35(4):1067-74
references.pmid: 20883720
references.citation: PLoS One. 2009;4(1):e4138
references.pmid: 19127295
references.citation: Proc Biol Sci. 2003 Aug 7;270 Suppl 1:S93-5
references.pmid: 12952647
references.citation: J Evol Biol. 2008 Jan;21(1):39-48
references.pmid: 18034801
references.citation: J Endocrinol. 2001 Jul;170(1):39-48
references.pmid: 11431135
references.citation: Am J Phys Anthropol. 2006 Nov;131(3):432-43
references.pmid: 16596605
references.citation: J Theor Biol. 1975 Sep;53(1):205-14
references.pmid: 1195756
references.citation: PLoS One. 2010 Oct 27;5(10):e13585
references.pmid: 21048972
references.citation: Biol Lett. 2005 Sep 22;1(3):256-9
references.pmid: 17148181
references.citation: Ann N Y Acad Sci. 2000 Apr;907:39-49
references.pmid: 10818619
references.citation: Proc Natl Acad Sci U S A. 2007 Feb 13;104(7):2465-70
references.pmid: 17267613
references.citation: Am J Hum Biol. 2005 Sep-Oct;17(5):527-58
references.pmid: 16136532