The speaker discusses various anecdotes and research related to human sexuality and reproductive biology. They touch on topics such as unusual orgasm triggers, experiments on sexual response, and the force of ejaculated semen. The talk includes humorous and unconventional aspects of these subjects, including animal mating techniques and historical perspectives on sexual behavior.
Here are the key facts extracted from the text:
1. There is a study published in The Journal of Ultrasound in Medicine titled "Observations of In-Utero Masturbation."
2. The study shows an ultrasound image of a fetus with its hand grasping its penis in a manner resembling masturbation movements.
3. Orgasm is a reflex of the autonomic nervous system, which deals with involuntary actions like digestion, heart rate, and sexual arousal.
4. The orgasm reflex can be triggered by a range of inputs, including genital stimulation, and in some cases, non-genital stimulation like stroking the eyebrow.
5. People with spinal cord injuries may develop a sensitive area above the level of their injury, which can lead to unusual orgasm triggers.
6. There is a documented case of a woman who experienced orgasm every time she brushed her teeth.
7. The sacral nerve root is the headquarters for orgasm along the spinal nerve, and stimulating this area can trigger an orgasm.
8. In dead people, specifically those who are brain-dead but being kept alive on a respirator, it is possible to trigger spinal reflexes, including the orgasm reflex.
9. Theodoor van De Velde, a 1930s marriage manual author, believed that a woman's orgasm was necessary for conception and wrote about the importance of pleasuring one's wife.
10. In the animal kingdom, there is evidence of the "upsuck" theory, where orgasm helps to facilitate conception, particularly in pigs.
11. The Danish National Committee for Pig Production found that sexually stimulating a sow during artificial insemination increased the farrowing rate by 6%.
12. Masters and Johnson conducted research on human orgasm and developed an artificial coition machine to study the female sexual response cycle.
13. Alfred Kinsey calculated the average distance traveled by ejaculated semen and found that in most cases, it simply slopped out rather than being spurted or thrown under great force.
14. One man in Kinsey's study set a record by ejaculating semen that landed just shy of the eight-foot mark.