1. THE SCIENCE OF BDSM
Synner’s Haven Club
Sadhaka “Mel” Resident, BDSM Specialist

2. OUTLINE
This lecture examines the biological side of BDSM. It assumes you have a
basic understanding of BDSM in some manner. There will be about 20
minutes of “lecture” followed by directed discussion on personal experiences
(not a scientific/technical discussion).
• The Science in the Climates of BDSM
• Neurochemicals & BDSM
• Endorphin Levels Theory
• A Note on Aftercare
• Questions to Discuss

3. THE SCIENCE IN THE
CLIMATES OF BDSM
There are several climates present in BDSM.
• Fear – varied practices, punishment, new experiences, failure, broken trust
• Pain – primarily sadomasochistic practices, emotional release
• Humiliation – primarily psychological/mental practices, emotional release

4. NEUROCHEMICALS & BDSM
Neurochemicals are body chemicals that focus on nervous system functions. This
can include regulating thoughts and emotions as well as pain reflexes.
• Dopamine - influences thought, movement, motivation, learning and reward-
seeking behavior; also a factor in sexual arousal
• Prolactin – hormone; responsible for both sexual gratification (orgasm) &
sexual refractory (let down) Cortisol – hormone; kick-starts your response to
fear and pain
• Oxytocin – peptide hormone; responsible for human bonding; increases
feelings of love and caring
• Endorphins – transmits stress, danger, excitement, orgasm, and pain signals
Each of these neurochemicals have an influence of BDSM climates.

5. ENDORPHIN LEVELS THEORY
There is a theory within the BDSM Community that there is direct correlation between
endorphin levels and Dom(me)/sub reactions during a scene. The chart below will explain:
Level Dom(me) Reaction Sub Reaction
One Mild – focused on anticipation None – waiting to see what
happens, pain reaction, endorphin
reserves on standby
Two Mild – waiting for noticeable Mild – body beginning to react, pain
submissive reaction threshold increasing
Three Mild/Moderate –reacting to Moderate – beginning of subspace
submissive
Four Moderate/Extreme - further Moderate/Extreme – true subspace
reactions to submissive
Five Varies – reacting to submissive, Extreme – ecstasy and subdrop on
thinking ahead to aftercare rapid succession

6. A NOTE ON AFTERCARE
Aftercare is extremely important for both the Dominant & submissive. It
usually involves more intimate behavior such as cuddling, hugging, and general
nurturing. Dopamine & oxytocin are hard at work. Because there is such a
neurochemical reaction, there may be a physical reaction such as shivering,
which should also be acknowledged (grab a blanket!). Overall aftercare helps
resolve the neurochemical experience at emotional & physical levels.

7. DISCUSSION QUESTIONS
• Do you prefer a particular BDSM climate? Which climate do understand
best? Which climate gives you the most issues? Do you think the climates
can be looked at separately?
• Can you identify the neurochemical responses you have? Which
neurochemicals are more prevalent in your own BDSM?
• What are you feelings on Endorphin Levels Theory? Can you follow the
levels in a recent scene (RL or SL)?
• How do you deal with aftercare? What’s your best experience? Worst
experience?