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Trait anger as a predictor of dangerous driving behaviour amongst people who use methamphetamine
“Methamphetamine is now the most common illicit substance detected among drivers injured or killed due to road trauma in Australia
Drivers affected by (meth)amphetamine are five times more likely to be killed, and over 6-times more likely to be injured in a traffic crash; more than double the risk reported for common impairing drugs such as benzodiazepines Perhaps unsurprisingly, people who use methamphetamine are also overrepresented in road trauma incidents requiring emergency care. Amphetamine-intoxicated drivers are up to 19 times more likely to be deemed responsible (culpable) for a motor vehicle collision compared to non-drug users, and they are significantly more likely to die as a result
Despite a reduction in self-reported use (Australian Institute of Health and Welfare, 2024) objectively, methamphetamine consumption in Australia continues to rise. Consequently, Australia now has one of the highest documented rates of methamphetamine use per capita, and the highest global age-standardised prevalence of (meth)amphetamine dependence.”
Conversely, low-to-moderate doses of methamphetamine can improve select, unidimensional psychomotor skills ostensibly related to driving, such as attention and perceptual processing speed however, this limited beneficial effect appears to be extinguished (and even maladaptive) at higher doses or during complex tasks or those requiring multi-tasking .
Negative emotionality and heightened levels of aggression are a pervasive, if largely anecdotal observation of individuals who consume methamphetamine. Individuals who consume methamphetamine cite elevated levels of self-reported aggression compared to drug-free controls.
Key Take-aways
- Methamphetamine is increasingly implicated in serious road-traffic incidents.
- Examining psychosocial factors may help identify predictors of dangerous driving behaviour.
- Licensed individuals who report predominant methamphetamine use were recruited.
- Trait Anger strongly and positively predicted dangerous driving behaviour in this cohort.
- Stable negative-emotional factors may increase harm through situational reactivity.
(Source: Science Direct)
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This interview was taken in 2015 with a then current, by his own words 'ICE Addict'. This revealing interview takes the listener on a journey through substance uptake, dependency, the law, drug courts, recovery and the misuse of drug policy. Andy's plea for best practice and end the failing Harm Reduction ideology that has been hijacked by pro-drug activists is compelling.
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History has shown that stimulant epidemics follow opioid epidemics. In recent years…Methamphetamine poses its own set of risks: addiction, damage to the body and brain, overdose, and increasing contamination with fentanyl and other toxic adulterants. Like cocaine, methamphetamine is highly reinforcing. Administration fuels binge use and often leads to major health problems in addition to craving and substance use disorder. The treatment for methamphetamine overdose has not advanced very much in the last 50 years and life-saving options remain limited. Because of these factors, prevention is the more important intervention while more effective treatments are developed for those with methamphetamine use disorder.
Methamphetamine use has both short- and long-term effects on the brain and body. Methamphetamine is toxic to the brain — studies have found that methamphetamine can cause similar damage to brain tissue as traumatic brain injuries. Acute use can cause short-term psychiatric symptoms, such as anxiety, hyper ability, disturbed speech patterns, and aggression. For some people these symptoms are not temporary. Long-term use can cause methamphetamine-induced psychosis, which includes hallucinations, delusions, and paranoia that can persist after long periods of abstinence. This methamphetamine-induced psychosis has similar symptoms to naturally occurring psychosis but does not respond as well to standard treatments.
In terms of its effects on the body, methamphetamine is rapidly absorbed by many organs and chronic use can harm the heart, lungs, and kidneys, among other organs. Intravenously injecting methamphetamine increases one’s risk of contracting infections such as Hepatitis C and HIV which are spread through shared injection supplies like needles.
For more Understanding Methamphetamine (addictionpolicy.org)
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Researchers have begun testing drugs approved for other substance use disorders to treat people with methamphetamine addiction. Examples include naltrexone—which is used for the treatment of opioid use disorder—and bupropion, which helps people quit smoking.
Both treatments have shown some effectiveness when used alone to treat methamphetamine addiction. A research team led by Dr. Madhukar Trivedi at the University of Texas Southwestern Medical Center launched a clinical trial to see if a combination of the two might help more people quit.
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When asked what was her worst memory, Jennea said that as a child during her third or fourth birthday her mother 'showed up with skinheads at my birthday party like nothing ever happened'