This video discussed how dopamine, a chemical which causes pleasurable feelings in the brain, works, and how Meth affects that system. The result of this chemical and biological process is depression. The video shows the example of former Meth user Lana and her former dealer Dennis and how this long-term depression is affecting Lana.
For more information on Meth and depression:
http://www.mappsd.org/Treatment%20-%20Mental%20Health.htm
For more information on Meth's effects:
http://www.mappsd.org/Effects%20of%20Use.htm
NOTE: This video clip is from the Discovery Channel documentary "Meth Nation." As a means of educating the public about the risks of Meth and its potential long-term effects, this video has been copied under Fair Use Guidelines. More information about this documentary, which originally aired on the Discovery Channel in 2009:
DVD of full documentary (Narcotics Nation - includes "Meth Nation," "Heroin Nation" and Cocaine Nation" episodes on one DVD) available for purchase at http://store.discovery.com/detail.php?p=107089&v=discovery&pa=discove...
More science:
The greater the intensity of methamphetamine use, the higher the levels of depressive symptoms:
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At least 9 other studies mention depression as among the psychological symptoms and side-effects of Meth use and/or as a symptom of withdrawal from the drug (and this is from 5 min of searching).
Many others demonstrate decreases in the amount of dopamine neurotransmitters, which would result in less feeling good (more depression). Check the links or Google Scholar.
mappsd 9 months ago
By the way, you can copy links (broken into 3 lines to get through YT filter) in my comments and drag to your browser tabs area to open the links.
mappsd 9 months ago
A quick search on Google Scholar pulls up some science for TheGreenPlague or anyone else interested:
Study of reduction of depressive symptoms through Meth treatment (some pretty high rates of depression @ baseline!):
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Participants with the greatest reduction in Meth use (urine verified) reported the greatest and quickest decreases in reported depressive symptoms:
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mappsd 9 months ago