Structural Differences

Marijuana can have very damaging affects on a person?s brain. It can impair a person?s short-term memory, decision-making and signal detection (Cannabinoids). ?In one study conducted in Memphis, TN, researchers found that, of 150 reckless drivers who were tested for drugs at the arrest scene, 33 percent tested positive for marijuana? (Marijuana). After having used marijuana a

Those who disagree with the legalization of marijuana across the United States state various concerns regarding its potential for negative side effects, such as causing addiction and deteriorating cognition (Loflin and Earleywine 293-296). Nonetheless,

Marijuana has its strongest long-term impact on young users whose brains are developing and maturing. Researchers see a decline in verbal ability as well as general knowledge in children between ages 9-12. (National Institute on Drug Abuse August

Marijuana has been used in the treatment of AIDS, cancer, glaucoma, multiple sclerosis, and chronic pain ("Medical Cannabis."). Researchers have been trying to explain the negative effects that marijuana can have on the central nervous system and how it hinders memory as well. The constant reports of short-term memory loss by heavy marijuana users brings up the question, is it the most common long term effect of marijuana use? Although it is said that marijuana has many effects such as exhaustion, increased appetite, offset sense of time, and bloodshot eyes, short-term memory loss is the symptom most frequently linked with the use or ingestion of marijuana. But why? Why does using marijuana have any impact on a person’s memory at all? Countless scientists have been working tirelessly to find an answer for this question. The active ingredient in marijuana, THC, is known to attach itself to areas of the brain linked to memory. When the scientists injected lab animals with THC at Rutgers University, they found that they acted as though there was no rhythm to their thought. It affected the hippocampal circuits in the brain to produce animals that were acting normal but in a delayed or offset manor.

Marijuana is the most popular illicit drug used among our teenagers in the United States. Research shows that 42% of high school seniors have smoked Cannabis, 18% within the past month and 5% smoked daily and 1 in 6 are addicts. More than 64% of teenagers reported that marijuana is very easily available (Gary). Unfortunately, some parents live in a world of denial and say “It’s not my kid. My child doesn’t smoke.” Unbeknown to us, there are unfavorable concerns for many young marijuana abusers such as the risk of addiction, poor school performances and a “gateway” to other lethal substances. Smoking marijuana increases respiratory diseases, impaired immune function, cognitive problems and motivational impairment. (National Institute on Drug Abuse). It is the leading cause of abnormal cognitive development which persists long after abstinence. Marijuana is the main drug used by children who seek emergency medical treatments and screened following an arrest or autopsies (Dennis et at).

Within Friese and Grube, they state that Marijuana is the most commonly used drug among teens in the US and with the access to medical marijuana, teens have only increased their use (34). Research also argues that with legalization, recreational use would suggest to adolescents that marijuana is safe and normal (Friese and Grube 34). This finding suggests teen use might increase (Friese and Grube 34). Therefore, since research shows a defeat in executive functioning and processing with use of cannabis (Battistella et al.), it is essential that adolescences decrease their use since the teen brain is still maturing (Crean et al. 5). As well, there is evidence that teenagers who use cannabis in early years have more significant cognitive problems than their peers (Crean et al. 2). Furthermore, in Friese and Grube findings, they argue that a typical drug free environment is crucial for teens’ development (37) since an environment with accessible marijuana will encourage marijuana use and increase risks of negative consequences in their adulthood and health (Friese and Grube 33). Therefore, legalizing the recreational use of cannabis could potentially have a large harmful effect on

Marijuana in the late 1960s’ had only one percent of tetrahydrocannabinol, compared to present day where Health Canada has discovered there is at least 10 percent of tetrahydrocannabinol and 30 percent in some cases. The tetrahydrocannabinol is a strong chemical and works immediately after one has inhaled it. Tetrahydrocannabinol mimics the neurotransmitter anandamide, which fills in the synapse between neurons and this disrupts the brain’s regular functions. In a normally functioning brain, anandamide activates the cannabinoid receptors but when smoking marijuana tetrahydrocannabinol activates these receptors which are in the hippocampus, cerebellum and basal ganglia. This affects the short-term memory, coordination, and learning and problem-solving skills for an individual. Brain development is also affected by the use of cannabis. Dr. Harold Kalant conducted a study in the 1980s’ with rats and cannabis use. He separated the rats into two groups; rats exposed to cannabis at adolescents and rats exposed to cannabis in adulthood. Kalant observed the rats exposed to cannabis as adolescents, had difficulty with memory and learning even after nine years of no exposure. In comparison, the rats who were adults when exposed to cannabis didn’t have long term effects. It is evident that brain development was disrupted by the use of cannabis in the growing years. Also, Dr. Andra Smith saw in her functional magnetic resonance imaging of brain activity of regular cannabis smokers and non-smokers, that the smokers had a more brain activity. She stated it was due to the brain having to work hard to “respond accurately”. It is obvious that brain function and development is harshly impacted by the use of

One of the biggest issues since legalization of marijuana in Colorado is the effect it has on our youth and future generations. In a report posted regarding the cause and effect on teenagers using marijuana Krista Lisdahl, director of the Brain Imaging and Neuropsychology lab at University of Wisconsin, Milwaukee, talks about the changes in the THC levels from the seventies to now. She also talks about how through modern technology it is possible to physically see the difference in the brain when a teenager is

It seems every decade marijuana studies show that it has no side effects on users, in turn it become more available like when some states in America had legalized it. Dr Kevin M. Gray believes that the only side effect of smoking weed is the physical addictions it causes, he believes that over 51% of all teens have used weed at least once and the biggest problem we are facing with this rapidly growing drug use is only addiction. Dr Marshall M. Gay believes that the health effects of weed isn’t that much as smoking cigarettes and doesn’t see it a threat to people’s health. “More than half (51%) of adolescents reported that marijuana is fairly or very easy to obtain.2 this ease of availability may have contributed to a recently reported "reverse gateway" from cigarettes use to marijuana”. The more ignored belief is that marijuana can lead to a variety of developmental, mental and physical side effects. The effects of smoking weed can extend to those of smoking cigarettes “studies show regular marijuana use can lead to many of the same

According to research, smoking marijuana daily can affect the development of the brain and can assure long term effects. A person’s memory can be impaired from marijuana because THC(tetrahydrocannabinol) changes how information is processed in the hippocampus. With the THC, people who smoke may experience a loss of hippocampal neurons, which are used to help them learn new information, and with the loss of those neurons plus the loss of neurons as they age, the person is not able to learn new information as quickly as others around their age. This affects society’s future by lowering people’s intelligence

Marijuana continues to be the most widely used drug in the Western Hemisphere, its cognitive effects robustly revolve around memory. There have been many studies done on the chemical effects that marijuana has on the brain centers concerned with memory and learning. There are more productive studies relating to the effects of cannabis on short-term memory that show different memory processes effected by this drug. Though there is not much knowledge on the effects the drug has on long-term memory due to suspected confounds that temper with the process of collecting proper data, there have been studies showing lasting effects in adolescents and chronic users (Schoeler and Bhattacharyya, 2013). More research should be done on the long-term processes in order to better understand the lasting effects of cannabis use. Marijuana causes these adverse effects on memory by first altering chemical processes in the brain.

This impact of recreational marijuana use can cause harm to its users and those around them. One impact of marijuana abuse is that it can hurt our senses, which can lead to hallucinations, not hearing important announcements, or even car accidents. THC affects certain parts of the brain by destroying their cells. When THC affects the cerebellum, neocortex, and the hippocampus, then it can affect that person’s judgement, and learning and memory issues. When THC goes to the amygdala and the hypothalamus, then it can cause bad behavior, aggressiveness, rebellion, poor relationships, and an increased sexual appetite. Sadly, addiction comes when THC goes to the nucleus accumbens. A few states such as Colorado and Idaho, have legalized marijuana for recreational use. As a result in Denver, Colorado there has been an increase of emergency room visits, exposed to by youth from curiosity and it having a presence in some baked goods, 40% more drug expulsions at schools, and 10% increase in

The article explains what marijuana is and the most common and other ways of people to input marijuana into their system. The article also gives a brief explanation of what are the short and long term effects of marijuana on the human brain, short term effects include altered sense of time, mood, impaired body movement, difficulty in thinking and solving problems and reduced memory

Marijuana, a plant that humans have used for thousands of years, grows ever closer to decriminalization and legalization around the country. Now that states like Washington and Colorado have legalized the recreational use of Marijuana, the opposition proclaims that usage of this plant will lead to harder drugs. This claim simply isn’t true and studies done by numerous organizations discredit the gateway drug theorem. Marijuana affects psychomotor skills because of the chemical tetrahydrocannabinol (THC), the active ingredient in marijuana; however, there has been no evidence to say that this plant will cause more accidents. Also, another theory about an individual failing in the cycle of abuse associated with marijuana has no validity

Marijuana is a green or brown mix of preserved, crushed leaves from the marijuana plant. A psychoactive drug, marijuana contains fifty-percent more tar than tobacco. Smoking the harmful plant can damage the brain, lungs, and the male reproductive system and may escalate the effects of epilepsy and psychosis (Kahler, 1988). Within campus colleges and universities, there are a lot of students who are using marijuana recreationally. Long-term marijuana use can induce negative effects on short-term memory, concentration, attention span, motivation, and problem solving, which clearly interfere with learning. Tetrahydrocannabinol, the active ingredient in marijuana, can reinforce dependence on the drug and on other addictive drugs (Joffe &