There is definitive medical and scientific evidence that increasing serotonin levels relative to other neurotransmitters improves ejaculatory control in men. There are over [172] supporting articles referenced by The National Library Of Medicine (PubMED), published in the medical literature that demonstrate that increasing serotonin centrally or the use of certain prescription antidepressants of the serotonin-selective type (SSRI’s) are useful in delaying early or premature ejaculation and improve climax control.