http://www.huffingtonpost.com/2013/06/05/bdsm-better-mental-health-study_n_3390676.html?ir=New+York
So tell me something I don't know.
Andreas Wismeijer, a psychologist at Nyenrode Business University in the Netherlands and the lead author on the study, told LiveScience that people involved in the BDSM community may have scored better on these surveys because they tend to be more aware of and communicative about their sexual desires, or because they have done some "hard psychological work" to accept and live with sexual needs that are beyond the scope of what is often considered socially acceptable to discuss in the mainstream.
This research isn't necessarily representative of the general population since participants were selected on a volunteer basis, but it does support the argument for removing BDSM from the Diagnostic and Statistical Manual of Mental Disorders (DSM). In the current DSM, BDSM fetishes are listed as "paraphilia," which essentially encompasses any "unusual" sexual preferences.
So tell me something I don't know.