For one, it isn’t possible to conclude that marijuana use causes lower intelligence based on this study alone. While the researchers controlled for differences in participant education levels, they didn’t rule out additional factors that may have contributed to cognitive decline. A 2013 reply to the New Zealand study suggests that personality factors may play a role in both marijuana use and cognitive decline. Low conscientiousness might explain both drug use and poor performance on tests of cognition.
Genetic factors may also contribute to cognitive decline, as suggested by a longitudinal twin study from 2016. In this case, the researchers compared changes in IQ between twins who used marijuana and their abstinent siblings. They didn’t find any significant differences in IQ decline between the two groups. More research needs to be done to understand how marijuana use affects intelligence over time. Whether cannabis, or marijuana, kills brain cells remains unknown, and current research studies have yielded conflicting results. Keep reading to learn more about what current studies have to say about marijuana’s short- and long-term effects on the brain. Share on Pinterest Marijuana may affect a person’s appetite, pain regulation, and mood. Please note that the studies covered in this article mainly consider the effects of tetrahydrocannabinol (THC) on the brain.
THC is the psychoactive compound in marijuana, or cannabis, that creates the ‘high’ effect. THC is just one of over 100 cannabinoids found in marijuana. The body naturally produces endocannabinoids, which are similar to cannabinoids. Both cannabinoids, such as THC, and these natural endocannabinoids, bind to the same receptors in the brain. Researchers have identified two types of these receptors: CB1 receptors located in the central nervous system CB2 receptors, which develop in the peripheral nervous system. When endocannabinoids bind to CB1 and CB2 receptors, they affect the following body functions: appetite and metabolism pain regulation learning memory mood sleep cardiovascular functions reproductive functions immune system functions muscle and bone formation coordination and motor control reward and addiction behaviors. Cannabinoids, such as THC, and naturally occurring endocannabinoids may have significant effects on brain function and development. This is because regions of the brain that control memory, learning, motor control, and sensory perception contain high concentrations of CB1 receptors. Current research on this topic has yielded conflicting results. Some studies suggest that THC has potentially permanent neurotoxic effects that impair people’s verbal learning, memory, and focus. In one 2017 animal study, researchers compared differences in working memory between adult rats exposed to a synthetic cannabinoid and those exposed to glucose during adolescence. The researchers found that the rats they exposed to cannabinoids had a significantly better working memory in adulthood than the control rats. In another 2018 animal study, researchers found that exposure to THC induced brain tissue growth and improved learning and memory function in rats. In a 2016 study, researchers assessed the cognitive function of 3,385 people aged 18–30 by looking at the data from the 25-year-long Coronary Artery Risk Development in Young Adults (CARDIA) Study that began in 1986. At year 25, 84% of these participants reported previous marijuana use, but only 9% reported using marijuana into middle age. After adjusting for demographic factors, psychiatric conditions, and other drug use, the researchers found long-term exposure to marijuana was associated with impaired verbal memory. However, they found no evidence to suggest an association between marijuana use and cognitive processing or executive function. Shamaley Ford, Car & Truck Dealership Located in El Paso, TX. Thank you for visiting our new & used Ford dealership in El Paso TX, we are excited to provide the best choices for your car, truck or SUV need. We offer great Ford incentives, rebates, offers and lease deals on new, used and certified pre-owned vehicles for your convenience. Monday 9:00AM - 9:00PM Tuesday 9:00AM - 9:00PM Wednesday 9:00AM - 9:00PM Thursday 9:00AM - 9:00PM Friday 9:00AM - 9:00PM Saturday 9:00AM - 8:00PM Sunday Closed. At Shamaley Ford dealership, serving El Paso, you can expect to always be treated in a neighborly fashion. This is true regardless of whether you're here to test drive a new or used car, get an estimate trade in value on your car, or figure out exactly what auto part you need. People wishing to upgrade to a new F-150, F-250, Explorer, Mustang or Focus are invited to visit our showroom and take a test drive today. Just a short jaunt away from Sunland Park, Socorro and Las Cruces, NM, we have a model for every driving style: eco-friendly, fast-and-furious, slow-and-steady, safety-conscious. Shamaley Ford also has an extensive assortment of well-maintained used cars showcased at our El Paso showroom.
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it's one thing to brag about everything Shamaley Ford has to offer drivers from Sunland Park, Socorro and Las Cruces, NM; it's something completely different to actually show you ourselves. That's why we invite you to see us in person at 11301 Gateway West El Paso, Texas today. Another element that makes Shamaley Ford unique is that here when someone has found the new or used Ford that best suits their lifestyle and driving style, it doesn't mean the fun part of buying a car is over. Our savvy team of car financing specialists has taken it upon themselves to rewrite that part of the classic car-buying story with a tenacious, take-care-of-their-own spirit (their own being you, the customer) that ensures the most agreeable car loan and Ford lease rates and conditions possible. Commitment to your new Ford from Shamaley Ford continues after you drive it out of our showroom for the first time.