[ExI] addiction

[Tara Maya]

I agree with Kelly, and also, although it’s not true of all addictions, it’s true of a common addictions, alcohol, and possibly others — it increases the chances someone will have sex. (In the early stages, at least.) In that sense, it’s pretty easy to see how imbibition would spread. At the same time, I believe that genetic resistance alcohol poisoning and/or (?) addiction spread at the same time that alcohol use did, perhaps in an arms race between the short term and long term benefits of drunkenness…?

Tara Maya
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> On Mar 15, 2016, at 3:45 PM, Kelly Anderson <kellycoinguy at gmail.com> wrote:
> 
> On Sat, Apr 4, 2015 at 5:21 PM, Keith Henson <hkeithhenson at gmail.com <mailto:hkeithhenson at gmail.com>> wrote:
> I don't think people are going to get very far with understanding
> addiction until they understand why human (some at least) can be
> addicted at all.
> 
> You folks are sick of hearing about it from me, anyone have an
> evolutionary pathway to this curious trait.
> 
> To addiction? Why did addiction evolve? This seems ultimately simple to me (sorry for jumping in here nearly a year late, but the thread never got here and I thought I had something to add when it came up out of random chance.)
> 
> THE most important evolutionary drive is the drive to reproduce. Without reproduction, genes are never passed on. Evolutionary game over.
> 
> Reproduction in most all multi-cellular animals is through sexual reproduction. So anything that would drive animals to have sex would be an evolutionary driving force. So what is it that sex does? It produces endorphins, which are accepted by the pleasure centers of the brain as "job well done". Any animal that reproduces successfully has to WANT to have sex (at least in season - for seasonally reproductive animals) very much and go through whatever evolution has required it to do to get sex. The reward is the release of brain chemicals that you WANT again and again. 
> 
> So, what do drugs do? They stimulate the same pleasure centers of the brain that are stimulated by sex. They hijack the pathways that evolved for our most important evolutionary function and they do it well. So it's no wonder that we become addicted to anything that gives the same reward as sex does. It makes a ton of sense from an evolutionary viewpoint.
> 
> -Kelly
> 
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