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  • With work, studying or a stressful schedule, it can be hard to find the time or energy

  • for that extra edge in the bedroom. But, could science have a solution to our sexual woes?

  • It just might...

  • Sexual desire in both men and women is controlled by your hormones. When something triggers

  • you to beturned on’, the brain and nervous system send signals to your pelvis, causing

  • blood vessels to dilate. You experience an increased heart rate, while your brain releases

  • norepinephrine, dopamine and other pleasurable neurotransmitters which make it clear to your

  • body that youre having a good time.

  • And humans have long tried to enhance this biological response throughout history. Unfortunately,

  • there is no real scientific evidence to the pop culture myth that oysters, chocolate or

  • other so calledaphrodisiacswill make you horny. And while Viagra may prolong an

  • erection, contrary to popular belief, it actually doesn’t make you more aroused. It works

  • solely to inhibit an enzyme so blood flow to the penis is increased, and only acts on

  • the peripheral nervous system. So popping the blue pill won’t increase libido, nor

  • will an erection occur without initial stimulation. Not to mention, it has no effect on women.

  • But it turns out that scientists may have mistakenly stumbled upon a new sex secret...

  • In an effort to create sunless tanning agents, scientists were researching melanocortin - a

  • specific protein in the brain which can control skin pigmentation. Except, when 10mg of the

  • synthetic version called melanotan-II were injected in a male, an immediate and unstimulated

  • erection lasting 8 full hours occurred along with nausea and vomiting. At 2.5 mg the erection

  • lasted 2-3 hours with minimal nausea. But after bringing the dose to 1.25 mg, the males

  • were aroused and had consistent erections without any nausea. Surprisingly, this drug

  • is now being effectively administered as a nasal spray - ‘sniff-a-stiffanyone?

  • On top of which, the drug works on females too.

  • When female rats were injected, along with other hormones such as β-estradiol-3-benzoate

  • and progesterone, they increased hops, darts, and ear wiggling in front of their male counterparts.

  • These are all actions designed to cause sexual arousal, and invite male rats for sex.

  • But, before you run out to find this seemingly miraculous love elixir, just know that it

  • hasn’t been approved or regulated anywhere in the world yet. However, its derivative

  • called bremelanotide, is currently undergoing human clinical trials as a potential treatment

  • for a myriad of sexual disorders, such as female sexual arousal disorder. And since

  • the main mode of action occurs directly in the central nervous system, it works on both sexes.

  • So eat your avocados, oysters and chocolate for sustenance...and let science handle the

  • sex.

  • Special thanks to Audible.com for supporting this episode and giving you a free audio book

  • of your choice at audible.com/asap. Audible is the leading provider of audiobooks with

  • over 150,000 downloadable titles across all types of literature. We recommend the book

  • Being Mortal: Medicine and What Matters in the Endwhich tackles how medicine can

  • not only improve life, but the process of its ending. You can download this audio book

  • or another of your choice, for free, at audible.com/asap. And with a subscription you get one free book

  • a month! Special thanks to Audible for making these videos possible!

  • And subscribe for more weekly science videos!

With work, studying or a stressful schedule, it can be hard to find the time or energy

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Can Science Improve Your Sex Life?

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    Cheng-Hong Liu posted on 2015/02/22
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