//www.koonmotors.com/news/mind_brain/marijuana/ Medical research on marijuana. How does marijuana affect the brain? What are some of the risks? Could ingredients in marijuana treat disease? Read this and more. en-us Fri, 08 Sep 2023 22:49:02 EDT Fri, 08 Sep 2023 22:49:02 EDT 60 //www.koonmotors.com/images/scidaily-logo-rss.png//www.koonmotors.com/news/mind_brain/marijuana/ For more science news, visit ScienceDaily. //www.koonmotors.com/releases/2023/07/230706160116.htm Researchers showed that consuming THC while pregnant could potentially affect development of the fetus and lead to life-long health impacts for offspring. Thu, 06 Jul 2023 16:01:16 EDT //www.koonmotors.com/releases/2023/07/230706160116.htm //www.koonmotors.com/releases/2023/05/230522131310.htm Researchers analyzed THC levels in the breath of people who use cannabis regularly, both before and after they smoked marijuana. The researchers found that THC levels spanned a similar range across pre- and post-use samples. 'In many cases, we would not have been able to tell whether the person smoked within the last hour based on the concentration of THC in their breath,' said study author. Mon, 22 May 2023 13:13:10 EDT //www.koonmotors.com/releases/2023/05/230522131310.htm //www.koonmotors.com/releases/2023/04/230420135331.htm Marijuana (cannabis) is well known for giving people the 'munchies.' Not only does it make people want to eat more, but it also makes them crave the tastiest, most high-calorie foods. Now a new study shows that well-studied nematode worms (C. elegans) react to those chemicals known as cannabinoids in precisely the same way. Thu, 20 Apr 2023 13:53:31 EDT //www.koonmotors.com/releases/2023/04/230420135331.htm //www.koonmotors.com/releases/2022/12/221212140658.htm Simultaneous cannabis and alcohol use, defined as using both substances at the same time so their effects overlap, increased in adults from 2008 to 2019, according to new research. Shifts in cannabis legislation have raised questions about unintended effects on cannabis and alcohol use patterns, whereby policy changes might lead people to use both substances. Until now, the relationships between recreational cannabis laws (RCLs) and changes in simultaneous cannabis/alcohol use prevalence had remain untested. Mon, 12 Dec 2022 14:06:58 EST //www.koonmotors.com/releases/2022/12/221212140658.htm //www.koonmotors.com/releases/2022/11/221129112845.htm Pregnant women living in U.S. states where cannabis is legal must be screened for the drug, for the health of both mother and baby, claim scientists who in a new national study have found that they are far more likely to use the substance. Tue, 29 Nov 2022 11:28:45 EST //www.koonmotors.com/releases/2022/11/221129112845.htm //www.koonmotors.com/releases/2022/11/221128101208.htm States that legalized recreational cannabis saw a slight population-level uptick in alcohol consumption that was largely driven by young adults and men, according to new research. Mon, 28 Nov 2022 10:12:08 EST //www.koonmotors.com/releases/2022/11/221128101208.htm //www.koonmotors.com/releases/2022/11/221116085946.htm New research has found no evidence that cannabidiol (CBD) reduces the negative effects of cannabis. Wed, 16 Nov 2022 08:59:46 EST //www.koonmotors.com/releases/2022/11/221116085946.htm //www.koonmotors.com/releases/2022/10/221004213341.htm Chemists have developed a fuel cell sensor that they hope to develop into a handheld analyzer to detect THC on a person's breath. When THC is introduced into their laboratory-scale device it oxidizes, creating an electric current whose strength indicates how much of the psychoactive compound is present. Tue, 04 Oct 2022 21:33:41 EDT //www.koonmotors.com/releases/2022/10/221004213341.htm //www.koonmotors.com/releases/2022/09/220928094834.htm In new study, opioid use seen to reduce or stop altogether, following prescription of medical cannabis. Wed, 28 Sep 2022 09:48:34 EDT //www.koonmotors.com/releases/2022/09/220928094834.htm //www.koonmotors.com/releases/2022/08/220827092455.htm A new first-of-its-kind study of twins finds that residents of states where recreational marijuana is legal use it 24% more frequently than those in states where it's illegal. It's among the strongest evidence yet that legalization increases use. Sat, 27 Aug 2022 09:24:55 EDT //www.koonmotors.com/releases/2022/08/220827092455.htm //www.koonmotors.com/releases/2022/08/220823135701.htm People who use therapeutic cannabis are more likely to also use nicotine products than the general population, according to a new study. Tue, 23 Aug 2022 13:57:01 EDT //www.koonmotors.com/releases/2022/08/220823135701.htm //www.koonmotors.com/releases/2022/08/220802121714.htm Plant biologists have defined the high-efficiency 'hacks' that cannabis cells use to make cannabinoids (THC/CBD). Although many biotechnology companies are currently trying to engineer THC/CBD outside the plant in yeast or cell cultures, it is largely unknown how the plant does it naturally. Tue, 02 Aug 2022 12:17:14 EDT //www.koonmotors.com/releases/2022/08/220802121714.htm //www.koonmotors.com/releases/2022/07/220725203611.htm Largest ever study into the health effects of different types of cannabis highlights concerns about stronger forms of the drug. Mon, 25 Jul 2022 20:36:11 EDT //www.koonmotors.com/releases/2022/07/220725203611.htm //www.koonmotors.com/releases/2022/07/220719162133.htm A new study found that rates of cannabis use and daily cannabis use have increased across the U.S., and current cannabis use and daily use are substantially higher among individuals residing in states that have legalized recreational cannabis use. Rates of cannabis use are even higher among Americans 12 and older who smoke cigarettes, and who reside in states with recreational cannabis laws, compared to those who live in states where cannabis was illegal in 2017. Tue, 19 Jul 2022 16:21:33 EDT //www.koonmotors.com/releases/2022/07/220719162133.htm //www.koonmotors.com/releases/2022/07/220701102757.htm Adolescents are over three times more vulnerable to developing a cannabis addiction than adults, but may not be at increased risk of other mental health problems related to the drug, according to a new study. Fri, 01 Jul 2022 10:27:57 EDT //www.koonmotors.com/releases/2022/07/220701102757.htm //www.koonmotors.com/releases/2022/06/220628083257.htm A new study found visits to the emergency department and hospitalizations are 22 per cent higher among individuals who use cannabis compared with those who do not. The findings also show serious physical injury and respiratory-reasons were the two leading causes of ED visits and hospitalizations among cannabis users. Tue, 28 Jun 2022 08:32:57 EDT //www.koonmotors.com/releases/2022/06/220628083257.htm //www.koonmotors.com/releases/2022/06/220606181234.htm Evidence behind the effectiveness of cannabis-related products to treat chronic pain is surprisingly thin, according to a new systematic evidence review. Voters in a number of states have legalized medical and recreational marijuana; however, the researchers found many of the products now available at U.S. dispensaries have not been well studied. Mon, 06 Jun 2022 18:12:34 EDT //www.koonmotors.com/releases/2022/06/220606181234.htm //www.koonmotors.com/releases/2022/05/220519115311.htm Cannabis vaping is increasing as the most popular method of cannabis delivery among all adolescents in the U.S., as is the frequency of cannabis vaping, according to researchers. Thu, 19 May 2022 11:53:11 EDT //www.koonmotors.com/releases/2022/05/220519115311.htm //www.koonmotors.com/releases/2022/05/220518130707.htm Students at four-year colleges and universities drink nearly twice as much alcohol as their peers in two-year colleges, according to a survey of college students in the Seattle area. On the other hand, students in community colleges and other two-year institutions use marijuana nearly twice as often as four-year students. Wed, 18 May 2022 13:07:07 EDT //www.koonmotors.com/releases/2022/05/220518130707.htm //www.koonmotors.com/releases/2022/04/220419092355.htm Some cannabis edibles look remarkably like popular snack foods and may be easily confused for them, finds a new study. Tue, 19 Apr 2022 09:23:55 EDT //www.koonmotors.com/releases/2022/04/220419092355.htm //www.koonmotors.com/releases/2022/03/220331101458.htm Cannabis use among pregnant women is on the rise and may be associated with negative health outcomes in children, according to a new study. Thu, 31 Mar 2022 10:14:58 EDT //www.koonmotors.com/releases/2022/03/220331101458.htm //www.koonmotors.com/releases/2022/03/220318110249.htm A new study shows that using cannabis products to treat pain, anxiety and depression failed to improve these symptoms while doubling the risk of developing the addictive symptoms of cannabis use disorder. People seeking cannabis to treat symptoms of anxiety and depression were at greatest risk of CUD. Contrary to evidence-based medicine, people with medical marijuana cards choose their own products and dosing, suggesting the need for better controls over dispensing, use, and professional follow-up of these patients. Fri, 18 Mar 2022 11:02:49 EDT //www.koonmotors.com/releases/2022/03/220318110249.htm //www.koonmotors.com/releases/2022/03/220303144146.htm Repetitive transcranial magnetic stimulation (rTMS) was associated with a reduction in self-reported cannabis use by up to 60 per cent among people with schizophrenia who have cannabis use disorder (CUD), according to a new study. Thu, 03 Mar 2022 14:41:46 EST //www.koonmotors.com/releases/2022/03/220303144146.htm //www.koonmotors.com/releases/2022/02/220210084937.htm Although recreational and medicinal marijuana (cannabis) is increasingly available across the U.S., public and professional awareness that cannabis use may adversely affect brain health is critical, according to the American Heart Association's first scientific statement on the subject. Thu, 10 Feb 2022 08:49:37 EST //www.koonmotors.com/releases/2022/02/220210084937.htm //www.koonmotors.com/releases/2022/01/220111153605.htm A new study shows that imaging of brain activity with functional near-infrared spectroscopy might offer a more accurate and reliable way to distinguish impairment from cannabis intoxication. Tue, 11 Jan 2022 15:36:05 EST //www.koonmotors.com/releases/2022/01/220111153605.htm //www.koonmotors.com/releases/2022/01/220107121502.htm Ontario saw nine times more emergency department visits per month for cannabis poisonings in young children under the age of 10 after Canada legalized recreational cannabis. While single hospitals have reported on child cannabis poisonings before, this is the first study to look at an entire region. Fri, 07 Jan 2022 12:15:02 EST //www.koonmotors.com/releases/2022/01/220107121502.htm //www.koonmotors.com/releases/2022/01/220106100350.htm Among adults with a certain type of bleeding stroke, those who used marijuana within the last 3-30 days were more than twice as likely to develop a serious stroke complication that increases the risk of death and disability. The study is the largest to examine the impact of THC, the mood-changing ingredient in marijuana, on complications after a bleeding stroke. Thu, 06 Jan 2022 10:03:50 EST //www.koonmotors.com/releases/2022/01/220106100350.htm //www.koonmotors.com/releases/2021/12/211213095020.htm Using cannabis alongside other drugs may come with a significant risk of harmful drug-drug interactions, new research suggests. The researchers looked at cannabinoids--a group of substances found in the cannabis plant -- and their major metabolites found in cannabis users' blood and found that they interfere with two families of enzymes that help metabolize a wide range of drugs prescribed for a variety of conditions. As a result, either the drugs' positive effects might decrease or their negative effects might increase with too much building up in the body, causing unintended side effects such as toxicity or accidental overdose. While more research needs to be done, the authors said one early takeaway from these studies is that it's important to be careful when using cannabis with other prescription drugs. Mon, 13 Dec 2021 09:50:20 EST //www.koonmotors.com/releases/2021/12/211213095020.htm //www.koonmotors.com/releases/2021/12/211201085147.htm As cannabis is legalized in more areas, it has become increasingly popular as a medicinal and recreational drug. This plant produces a pungent, skunk-like odor that is pleasing to some but repulsive to others. Now, researchers have discovered a new family of prenylated volatile sulfur compounds (VSCs) that give cannabis its characteristic skunky aroma. The findings open up opportunities to investigate the molecules for medicinal benefits, the researchers say. Wed, 01 Dec 2021 08:51:47 EST //www.koonmotors.com/releases/2021/12/211201085147.htm //www.koonmotors.com/releases/2021/10/211008083531.htm Researchers compared early preterm infants who were fed breast milk from THC-positive mothers to those who were fed either formula or breast milk from THC-negative mothers and found no differences in short-term health impacts such as breathing difficulties, lung development, and feeding issues. Fri, 08 Oct 2021 08:35:31 EDT //www.koonmotors.com/releases/2021/10/211008083531.htm //www.koonmotors.com/releases/2021/10/211005101905.htm Scientists have found that three rare cannabinoids reduce seizures in mice. They using the information to develop a better cannabis-based treatment for Dravet syndrome, an intractable childhood epilepsy. Tue, 05 Oct 2021 10:19:05 EDT //www.koonmotors.com/releases/2021/10/211005101905.htm //www.koonmotors.com/releases/2021/09/210927110456.htm 美国大麻使用的提高再保险sulting from its legalization for recreational purposes. The findings showed that passage of the laws led to a rise in the odds of past-year and past-month cannabis use among individuals of Hispanic, Other and non-Hispanic whites compared to the period prior to enacting laws for recreational use. However, legalization did not lead to use more frequently, or cannabis use disorder among these groups. Mon, 27 Sep 2021 11:04:56 EDT //www.koonmotors.com/releases/2021/09/210927110456.htm //www.koonmotors.com/releases/2021/09/210926102237.htm 智能手机的传感器,就像用于GPSsystems, might be a way to determine whether or not someone is intoxicated after consuming marijuana, according to a new study. Sun, 26 Sep 2021 10:22:37 EDT //www.koonmotors.com/releases/2021/09/210926102237.htm //www.koonmotors.com/releases/2021/08/210819102752.htm Teenagers who use cannabis frequently may be more likely to have children born preterm, when they become parents up to twenty years later, finds a new study. The research repeatedly assessed 665 participants in a general population cohort on their tobacco and cannabis use between ages 14 to 29 years, before pregnancy. Thu, 19 Aug 2021 10:27:52 EDT //www.koonmotors.com/releases/2021/08/210819102752.htm //www.koonmotors.com/releases/2021/08/210813152028.htm A new study shows that between 2013 and 2018, as many U.S. states were legalizing recreational marijuana, cancer patients continued to abstain in large numbers. Fri, 13 Aug 2021 15:20:28 EDT //www.koonmotors.com/releases/2021/08/210813152028.htm //www.koonmotors.com/releases/2021/07/210715090838.htm Combined perceptions of the risk and availability of cannabis influence the risk of cannabis use more than perceived risk and perceived availability alone, according to a new study. Researchers observed that those who perceived cannabis as low-risk and available were more likely to report using the drug in the past year and almost daily compared to those individuals who perceived cannabis as high-risk and unavailable. This is the first study to consider the joint effects of perceived risk and perceived availability. Thu, 15 Jul 2021 09:08:38 EDT //www.koonmotors.com/releases/2021/07/210715090838.htm //www.koonmotors.com/releases/2021/07/210708083849.htm Researchers observed participants over Zoom as they used high-potency cannabis they purchased themselves from dispensaries in Washington state, where recreational cannabis is legal. After administering cognitive tests, researchers found no impact on users' performance on decision-making tests in comparison to a sober group but did find memory impairments related to free recall, source memory and false memories. This study is one of the few to investigate cannabis flower and concentrates containing more than 10% THC. Thu, 08 Jul 2021 08:38:49 EDT //www.koonmotors.com/releases/2021/07/210708083849.htm //www.koonmotors.com/releases/2021/06/210624135526.htm Adolescent marijuana use and binge drinking did not significantly change during the COVID-19 pandemic, despite record decreases in the substances' perceived availability, according to a survey of 12th graders in the United States. The study's findings challenge the idea that reducing adolescent use of drugs can be achieved solely by limiting their supply. Thu, 24 Jun 2021 13:55:26 EDT //www.koonmotors.com/releases/2021/06/210624135526.htm //www.koonmotors.com/releases/2021/06/210624121715.htm As the ravages of the opioid epidemic lead many to avoid these powerful painkillers, a significant number of people with fibromyalgia are finding an effective replacement in CBD-containing products, finds a new study. Thu, 24 Jun 2021 12:17:15 EDT //www.koonmotors.com/releases/2021/06/210624121715.htm //www.koonmotors.com/releases/2021/06/210602125955.htm Zebrafish exposed to the leading cannabinoids found in cannabis in the earliest stages of development suffer a significant drop in neural activity later in life, according to a new study that has implications for prenatal development in humans. Wed, 02 Jun 2021 12:59:55 EDT //www.koonmotors.com/releases/2021/06/210602125955.htm //www.koonmotors.com/releases/2021/05/210512115703.htm 许多人患有慢性疼痛,在一些cases, cannabis can provide relief. But the drug also can significantly impact memory and other cognitive functions. Now, researchers have developed a peptide that, in mice, allowed THC, the main component of Cannabis sativa, to fight pain without the side effects. Wed, 12 May 2021 11:57:03 EDT //www.koonmotors.com/releases/2021/05/210512115703.htm //www.koonmotors.com/releases/2021/04/210413114047.htm New research shows that while cannabis users had higher rates of psychotic experiences than non-users across the board, the difference was especially pronounced among those with high genetic predisposition to schizophrenia. Tue, 13 Apr 2021 11:40:47 EDT //www.koonmotors.com/releases/2021/04/210413114047.htm //www.koonmotors.com/releases/2021/04/210412114842.htm Smoking cannabis when you're young may increase your risk of developing heart disease later, according to a recent study. Mon, 12 Apr 2021 11:48:42 EDT //www.koonmotors.com/releases/2021/04/210412114842.htm //www.koonmotors.com/releases/2021/04/210406084046.htm Legalization of recreational cannabis may be associated with an increase in fatal motor vehicle collisions based on data from the United States. Tue, 06 Apr 2021 08:40:46 EDT //www.koonmotors.com/releases/2021/04/210406084046.htm //www.koonmotors.com/releases/2021/03/210322120108.htm Study finds that a small portion of the risk for repeated cannabis use into adulthood can be attributed to the genetic effects of neuroticism, risk tolerance and depression that can appear during adolescence. Mon, 22 Mar 2021 12:01:08 EDT //www.koonmotors.com/releases/2021/03/210322120108.htm //www.koonmotors.com/releases/2021/03/210319125519.htm Medical cannabis can reduce essential tremor in mice. By injecting a specific synthetic cannabinoid into the spinal cord of mice suffering from essential tremor, researchers have shown that the drug can reduce involuntary shaking - as the cannabinoid activates a particular type of cell, the so-called astrocytes. Fri, 19 Mar 2021 12:55:19 EDT //www.koonmotors.com/releases/2021/03/210319125519.htm //www.koonmotors.com/releases/2021/03/210310204235.htm A new analysis explores the effects of these changes on use. The analysis concludes that sharp declines in production costs for cannabis and opioids could dramatically reduce the price per dose for consumers in ways that alter patterns of use and dependence. Wed, 10 Mar 2021 20:42:35 EST //www.koonmotors.com/releases/2021/03/210310204235.htm //www.koonmotors.com/releases/2021/01/210128134755.htm A study has found that adolescents who frequently use cannabis may experience a decline in Intelligence Quotient (IQ) over time. The findings of the research provide further insight into the harmful neurological and cognitive effects of frequent cannabis use on young people. Thu, 28 Jan 2021 13:47:55 EST //www.koonmotors.com/releases/2021/01/210128134755.htm //www.koonmotors.com/releases/2021/01/210127193325.htm Access to legal cannabis stores is associated with a reduction in opioid related deaths in the United States, particularly those linked to synthetic opioids such as fentanyl, finds a new study. Wed, 27 Jan 2021 19:33:25 EST //www.koonmotors.com/releases/2021/01/210127193325.htm //www.koonmotors.com/releases/2021/01/210126171607.htm A recent study of drugged driving shows that a sizable percentage of individuals reported the use of marijuana and other illicit drugs while operating behind the wheel. Tue, 26 Jan 2021 17:16:07 EST //www.koonmotors.com/releases/2021/01/210126171607.htm //www.koonmotors.com/releases/2021/01/210126102800.htm When entrepreneurs dream up ideas for new businesses, cannabis use might help, and hinder, their creativity, according to a new study. Tue, 26 Jan 2021 10:28:00 EST //www.koonmotors.com/releases/2021/01/210126102800.htm //www.koonmotors.com/releases/2021/01/210125144617.htm Teenagers with happy childhood memories are likely to drink less, take fewer drugs and enjoy learning, according to new research. Mon, 25 Jan 2021 14:46:17 EST //www.koonmotors.com/releases/2021/01/210125144617.htm //www.koonmotors.com/releases/2021/01/210111084233.htm Marijuana use increases throughout the calendar year, with use up 13 percent on average at the end of each year compared to the beginning. Mon, 11 Jan 2021 08:42:33 EST //www.koonmotors.com/releases/2021/01/210111084233.htm //www.koonmotors.com/releases/2021/01/210108142134.htm More than half of people who use medical marijuana products to ease pain also experience clusters of multiple withdrawal symptoms when they're between uses, a new study finds. And about 10% of the patients taking part in the study experienced worsening changes to their sleep, mood, mental state, energy and appetite over the next two years as they continued to use cannabis. Fri, 08 Jan 2021 14:21:34 EST //www.koonmotors.com/releases/2021/01/210108142134.htm //www.koonmotors.com/releases/2020/12/201222104120.htm Female rats that inhaled vaporized cannabis daily for a month developed a blunted physiological response to stress, according to a new study. In contrast, male rats that were provided access to the same potency of cannabis over the same 30-day window did not experience any physiological changes in how they responded to a stressful situation. Tue, 22 Dec 2020 10:41:20 EST //www.koonmotors.com/releases/2020/12/201222104120.htm //www.koonmotors.com/releases/2020/12/201216183705.htm Made in clandestine laboratories and sold widely across the United States, the diverse class of drugs known as synthetic cannabinoids presents a growing public health threat. In a new study, scientists have devised a way to deactivate these designer drugs after they've been administered -- offering a potential path for treating addiction and overdose. Wed, 16 Dec 2020 18:37:05 EST //www.koonmotors.com/releases/2020/12/201216183705.htm //www.koonmotors.com/releases/2020/11/201116092241.htm 在蒂姆最大研究大麻如何改变了e finds increased strength putting consumers at greater risk of harm. Mon, 16 Nov 2020 09:22:41 EST //www.koonmotors.com/releases/2020/11/201116092241.htm //www.koonmotors.com/releases/2020/10/201020081733.htm People with obsessive-compulsive disorder (OCD) report that the severity of symptoms was reduced by about half within four hours of smoking cannabis. After smoking cannabis, users with OCD reported it reduced their compulsions by 60%, intrusions, or unwanted thoughts, by 49% and anxiety by 52%. The study also found that higher doses and cannabis with higher concentrations of CBD were associated with larger reductions in compulsions. Tue, 20 Oct 2020 08:17:33 EDT //www.koonmotors.com/releases/2020/10/201020081733.htm //www.koonmotors.com/releases/2020/10/201014095130.htm Regular cannabis exposure in rats during pregnancy may cause their offspring to have long-term cognitive deficiencies, asocial behavior, and anxiety later in adulthood. Wed, 14 Oct 2020 09:51:30 EDT //www.koonmotors.com/releases/2020/10/201014095130.htm //www.koonmotors.com/releases/2020/10/201012120007.htm Fewer college-age Americans drink alcohol, compared to nearly 20 years ago, according to a new study. Mon, 12 Oct 2020 12:00:07 EDT //www.koonmotors.com/releases/2020/10/201012120007.htm