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Tags | Notes | |
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Carol Falkowski: Marijuana and adolescents: Caution | 03/05/2017 | Public Health, Brain, Long-term, short-term, Falkowski |
Everyone should be concerned: Voters, not medical practitioners or scientists, have been able to determine medical practice. |
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Learn more about the risks marijuana use poses to your health. | 01/29/2017 | Brain, heart, lungs, mental health, poisoning, Pregnancy, driving, CDC, stroke, Side-Effects |
Here are just a few of the health effects you may want to know:
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Marijuana use in early adolescence may affect verbal IQ | 01/24/2017 | IQ, youth usage, Brain |
"The study suggests that the effects of cannabis use on verbal intelligence are explained not by neurotoxic effects on the brain, but rather by a possible social mechanism," said lead author Natalie Castellanos-Ryan, Assistant Professor at Universite de Montreal in Canada |
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Parsing the Contradictions: Marijuana and the Brain | 12/07/2016 | Brain, dana foundation, Neuroscience |
“We see specific morphological changes in the brain to important neurotransmitter systems, and individuals who are exposed to THC early in life show greater sensitivity to opiates than others do,” she said. “We know that the brain definitely adapts to marijuana. It is profoundly changing the receptors and receptor signaling that impact gene expression. And the changes it makes last through adulthood and even into the next generation. So we see that there’s something about the ongoing processes in the developing brain that this drug somehow sensitizes—in the cells, the receptors, and in the signaling cascades—that makes kids more vulnerable to addiction and other problems later.” “There is a lot of optimism for what components of the marijuana plant may offer on a medicinal level but, like all other drugs, the caveat is that you have to know what it does, what population it can be used for, and who could be vulnerable to its effects. We need a lot more research before we can say anything concrete about its future as a treatment.”
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What Educators Should Know About Marijuana | 09/12/2016 | Infographics, educators, Brain, youth, charts |
KNOW YOUR A,B,C,D’s … Absent, Behavior, Course Grade = Drugs |
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Cannabis use during pregnancy may affect brain development in offspring: Thicker prefrontal cortex | 06/20/2016 | Pregnancy, Brain, science daily |
Summary: Cannabis use during pregnancy is associated with abnormal brain structure in children, according to a new study. Compared with unexposed children, those who were prenatally exposed to cannabis had a thicker prefrontal cortex, a region of the brain involved in complex cognition, decision-making, and working memory. |
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In Defense of our Brain | 04/13/2016 | powerpoint, Brain |
“This is not a war on drugs , it is a defense of our brains!” Dr. Bertha Madras, PhD |
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Adolescent Cannabinoid Exposure Induces a Persistent Sub-Cortical Hyper-Dopaminergic State and Associated Molecular Adaptations in the Prefrontal Cortex | 01/04/2016 | Brain, adolescent, Research |
Thus, adolescent THC exposure induced behavioral abnormalities resembling positive and negative schizophrenia-related endophenotypes and a state of neuronal hyperactivity in the mesocorticolimbic dopamine (DA) pathway. Furthermore, we observed profound alterations in several prefrontal cortical molecular pathways consistent with sub-cortical DAergic dysregulation. Our findings demonstrate a profound dissociation in relative risk profiles for adolescent versus adulthood exposure to THC in terms of neuronal, behavioral, and molecular markers resembling neuropsychiatric pathology. |
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Study: High-potency marijuana linked with neural damage | 11/28/2015 | Studies, Brain, Potency |
"We found that frequent use of high-potency cannabis significantly affects the structure of white matter fibres in the brain, whether you have psychosis or not," |
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Medicinal and Recreational Marijuana: What are the Risks? | 07/31/2015 | Teens, Research, Studies, Brain, addiction, anxiety, depression, Resource Paper |
Brain abnormalities and memory problems were observed in these individuals in their early twenties, two years after they had stopped using marijuana. The cannabis users were noted to have striatal, globus pallidus, and thalamus changes showing these brain regions appearing to shrink and collapse inward. These individuals also had poorer working memory. The earlier the age of cannabis use, the more dramatic the brain changes and memory deficits were noted to be. |
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Six Ways Science Says Marijuana May Hurt Your Health | 06/27/2015 | Danger, science, car crashes 2, Brain, addiction, heart, car crashes | ||
Effects on Marijuana Use on Developing Adolescents | 04/30/2015 | adolescent, Brain, Effects, ATTC, video | ||
Marijuana users may have ‘false memories’ | 04/22/2015 | Brain, Biomedical, youth, memory, Studies, Research |
Participants in a study who had used the drug daily for around three years in their teens had an abnormally shaped hippocampus by the time they were in their early 20s. |
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How pot gives people the munchies | 02/18/2015 | Brain, Studies | ||
Medical Marijuana: The State of the Science | 02/06/2015 | Studies, Research, medscape, mental health, Side-Effects, heart, lungs, body, Brain, youth, cannabis, Resource Paper |
Medical cannabinoids are here to stay, but intellectual honesty is imperative if we are moving toward exploiting their potential benefits. Owing to rising THC concentrations of products, "medical" marijuana is rarely good medicine. This review has identified the dangers associated with wholeplant marijuana, whether used for recreational or for supposedly medical purposes. |
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Marijuana Effects on Body, Brain & Behavior | 01/30/2015 | video, Volkov, NIDA, body, Brain, Behavior | ||
How Marijuana Affects the Brain | 12/07/2014 | Infographics, Brain, youth |
“It’s a natural plant! What’s the big deal?” —A common declaration among youth who believe that the effects of marijuana are harmless and that the substance shouldn’t be regulated. Regardless of public opinion, the science is clear: Regular recreational use of marijuana during adolescence is harmful to the brain, which isn’t fully developed until the age of 25. |
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Long-term effects of marijuana use on the brain | 10/13/2014 | Long-term, Side-Effects, Brain, Research, Studies | ||
The terrible truth about cannabis: Expert's devastating 20-year study finally demolishes claims that smoking pot is harmless | 10/07/2014 | Brain, Studies | ||
Pot studies suggest regular use is bad for teen brains | 08/09/2014 | Teens, Brain, Studies | ||
Patrick Kennedy: Legalizing pot endangers children | 07/28/2014 | youth, Brain | ||
Marijuana- 2014 Dr. Madras Presentation | 07/01/2014 | madras, opioid, Pregnancy, youth, powerpoint, Brain | ||
Six Ways Science Says Marijuana May Hurt Your Health | 06/29/2014 | addiction, heart, car crashes 2, Impairment, Death, Brain | ||
Smoking marijuana as a teenager lowers IQ for LIFE, scientists warn | 06/07/2014 | Studies, Brain, youth, Impairment, memory |
The damaging effects remain even if the person stops smoking the drug |
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Cannabis Use Is Quantitatively Associated with Nucleus Accumbens and Amygdala Abnormalities in Young Adult Recreational Users | 04/16/2014 | Studies, Medical, Brain, youth | ||
Casual marijuana use linked with brain abnormalities, study finds | 04/15/2014 | Research, Brain, young adults, Studies |
For the first time, researchers at Northwestern University have analyzed the relationship between casual use of marijuana and brain changes – and found that young adults who used cannabis just once or twice a week showed significant abnormalities in two important brain structures. |
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NIDA's Dr. Nora Volkow Discusses Marijuana's Effects on the Brain, Body & Behavior | 02/10/2014 | video, youth, Brain, body, Behavior | ||
Miswiring the brain | 01/27/2014 | Brain, Pregnancy |
cannabis use during pregnancy can increase the risk for ill‐behaviors (Goldschmidt et al, 2004; Day et al, 2011 |
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Cannabis Use in Teens Linked to Irreparable Drop in IQ | 04/26/2013 | Studies, youth, Brain |
"Our results suggest that adolescents are particularly vulnerable to develop cognitive impairment from cannabis and that the drug, far from being harmless, as many teens and even adults are coming to believe, can have severe neurotoxic effects on the adolescent brain,".. |
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Brain Facts- Society of Neuroscience | 02/16/2012 | Brain, society of neuroscience |
In radioactive tracing studies, scientists found that tetrahydrocannabinol (THC), the active ingredient in marijuana, binds to specific receptors called cannabinoid receptors, many of which coordinate movement. This may explain why people who drive after they smoke marijuana are impaired. The hippocampus, a structure involved with memory storage and learning, also contains many receptors for THC. This finding provides some insight into why heavy users or those intoxicated on marijuana have poor short-term memory and problems processing complex information. |
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The Teen Brain and Marijuana | 02/16/2012 | Brain, mental health, Teen, CEASAR |
Even after controlling for the confounding effect of mental illness symptoms preceding marijuana use, these studies showed an increased risk of developing schizophrenia or mood disorders (depression, anxiety) in adulthood if individuals regularly smoked marijuana during adolescence. The risk was particularly heightened if there was any family history of mental illness (i.e., “genetics provided the loaded gun and marijuana pulled the trigger”). Also, mental illness, among those at risk, tended to show up earlier with marijuana use. |
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Heavy Marijuana Use May Damage Developing Brain In Teens, Young Adult | 02/03/2009 | Teen, Brain |