D
Deleted member 23558
God make my neurotransmitters great inc
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Researchers permanently shut down serotonin in adult male rats. Subsequent libido and "mounting" activity went through the roof. I think I recall them "mounting" up to 60x per hour compared to the average of 2
Researchers had a novel idea to make them lazy, unsocial, and unreproductive by administering 5-HTP (serotonin precursor). Worked like a charm.
The hair loss association can be ignored as it's not from some physiological function, but more from increased grooming/sexual behavior.
Unfortunately, zero serotonin does seem to have a negative effect of restless sleep. This was also replicated in cats: http://www.ncbi.nlm.nih.gov/pubmed/5312896