Cannabis-Use Disorder Archive

Link Between Genetic Variation, Lifetime Cannabis Use Found

Link Between Genetic Variation, Lifetime Cannabis Use Found

Approximately 30% of users exhibit signs of marijuana abuse or dependence.

Cannabis Use Has a Negative Impact on Gum Health

Cannabis Use Has a Negative Impact on Gum Health

Prolonged cannabis use is a risk factor for periodontal disease.

Synthetic Cannabinoids: A Public Health Concern

Synthetic Cannabinoids: A Public Health Concern

The increased use of synthetic cannabinoids presents a public health threat.

Marijuana Use in Male Teenagers Linked to Earlier Mortality

Marijuana Use in Male Teenagers Linked to Earlier Mortality

Study links heavy cannabis use in male teens to increased mortality by age 60.

Genes Associated With Cannabis Dependence Identified

Genes Associated With Cannabis Dependence Identified

Genome-wide association identified 3 independent regions with single nucleotide polymorphisms.

The Benefits and Consequences of Legalized Marijuana

The Benefits and Consequences of Legalized Marijuana

Questions remain as to whether botanically-derived marijuana offers clinical benefit over pharmaceutical-grade THC, its active ingredient.

Increased ED Visits in Colorado Tied to Cannabis

Increased ED Visits in Colorado Tied to Cannabis

Visits to the emergency department for out-of-state individuals increased following legalization of cannabis in Colorado.

Genetic Variant Could Identify Cannabis Users at Risk for Psychosis

Genetic Variant Could Identify Cannabis Users at Risk for Psychosis

Healthy participants with a variation in the AKT1 gene were at higher risk of acute psychotic response to cannabis.

Using Marijuana Doesn't Boost Anxiety, Mood Disorders Risk

Using Marijuana Doesn't Boost Anxiety, Mood Disorders Risk

Smoking pot, however, is significantly associated with any substance use, alcohol use, drug use disorders.

Past Marijuana Use Could Worsen Verbal Memory In Mid-Life

Past Marijuana Use Could Worsen Verbal Memory In Mid-Life

Users whose cumulative marijuana use exceeded the equivalent of one joint a day for five years had a significant decline in verbal memory in middle age.

Tanning Increases Substance Abuse in Teens

Tanning Increases Substance Abuse in Teens

Found more likely to smoke, drink, and use illegal drugs and steroids.

Cannabis Produces Transient Psychosis-Like Effects

Cannabis Produces Transient Psychosis-Like Effects

If the link between neural noise and psychosis is confirmed, it could help researchers have a better understanding of schizophrenia symptoms.

Concentrated Cannabis Can Damage Brain's White Matter

Concentrated Cannabis Can Damage Brain's White Matter

Frequent use of high-potency marijuana was associated with a higher level of white matter damage.

Ten Percent of Adults Have a Drug-Use Disorder in Their Lifetime

Ten Percent of Adults Have a Drug-Use Disorder in Their Lifetime

About 4% of Americans are currently battling a substance-use disorder.

Genetics May Influence Marijuana Dependence in Childhood Abuse Victims

Genetics May Influence Marijuana Dependence in Childhood Abuse Victims

A certain variation in a gene was associated with cannabis dependence in child abuse victims.

Marijuana Use and Abuse Rising

Marijuana Use and Abuse Rising

The most notable increases in marijuana use were in women, blacks, Hispanics, people living in the South, and those middle-aged or older.

No Evidence To Support Cannabis/Schizophrenia Link

No Evidence To Support Cannabis/Schizophrenia Link

Brain researcher says no studies have ever demonstrated that there is a risk of long-term psychosis with marijuana use.

Abuse of Psychoactive Drugs Most Common Among Men, Whites

Abuse of Psychoactive Drugs Most Common Among Men, Whites

Participants who had used substances such as synthetic marijuana or bath salts were also more likely to have used illicit drugs.

Adolescents With Chronic Illnesses Susceptible to Marijuana, Alcohol

Adolescents With Chronic Illnesses Susceptible to Marijuana, Alcohol

Twenty percent of high school students with conditions including cystic fibrosis and type 1 diabetes have smoked marijuana.

Marijuana Changes Brain, But Doesn't Shrink It

Marijuana Changes Brain, But Doesn't Shrink It

The effects of cannabis, however, may be the most pronounced in those who are at the greatest risk for psychosis or addiction.

Medical Marijuana Not Very Effective for Many Conditions

Medical Marijuana Not Very Effective for Many Conditions

Analysis of 79 studies finds that medical cannabis is effective in treating chronic pain, but less so for many other conditions.

Medical Marijuana Laws Don't Increase Cannabis Use Among Adolescents

Medical Marijuana Laws Don't Increase Cannabis Use Among Adolescents

Rates of marijuana use among teens did not increase after states passed laws approving cannabis for medical uses.

Using Medical Marijuana, Pain Meds Together Doesn't Up Abuse Risk

Using Medical Marijuana, Pain Meds Together Doesn't Up Abuse Risk

Prescription pain med users who also took medical pot had similar rates of alcohol and other drug use than those who took pain meds alone.

Why Marijuana Is Critical For Research in Treating PTSD

Why Marijuana Is Critical For Research in Treating PTSD

Arizona psychiatrist Sue Sisley has been battling for years to conduct research to demonstrate cannabis as an effective PTSD treatment.

Medical Marijuana: What Psychiatrists Need to Know

Medical Marijuana: What Psychiatrists Need to Know

With growing calls for the use of cannabis in treating psychiatric conditions, psychiatrists need to be aware of the scientific evidence.

The Growing Problem of Illicit Substance Abuse in the Elderly

The Growing Problem of Illicit Substance Abuse in the Elderly

Cocaine, heroin and marijuana are the most popular illegal drugs abused among seniors.

Panel Backs Medical Marijuana for PTSD in Illinois

Panel Backs Medical Marijuana for PTSD in Illinois

The Illinois Medical Cannabis Advisory Board, however, rejected cannabis as a treatment for anxiety.

Mental Illness in Delinquent Youth Doesn't Portend Future Violence

Mental Illness in Delinquent Youth Doesn't Portend Future Violence

However, youths with a history of substance abuse may be linked to a higher risk of violent behavior.

Controversial Psychiatrist to Start Marijuana Trial for PTSD

Controversial Psychiatrist to Start Marijuana Trial for PTSD

Sue Sisley, who was fired as a professor last year, said she will start the clinical trial as soon as she receives marijuana from the feds.

School Policies Influence Students' Marijuana Use

School Policies Influence Students' Marijuana Use

However, sending marijuana-using students to counseling instead makes it less likely their classmates will also use the drug.

Cannabis May Increase Bipolar Symptoms

Cannabis May Increase Bipolar Symptoms

Cannabis use was linked to an increase in manic and depressive symptoms in people with bipolar disorder.

Addictive Behaviors Tied to E-Cigarette Use in Young People

Addictive Behaviors Tied to E-Cigarette Use in Young People

College students who use tobacco, marijuana or binge drink are also more likely to smoke e-cigarettes.

Regular Marijuana Use May Impact Memory in Teens

Regular Marijuana Use May Impact Memory in Teens

Daily marijuana use also linked to brain abnormalities, such as an oddly shaped hippocampus.

Cannabis and Schizophrenia: Trigger or Treatment?

Cannabis and Schizophrenia: Trigger or Treatment?

While some argue that cannabis may worsen schizophrenia symptoms, evidence is mounting for marijuana as a potential treatment.

Regular Marijuana Use Boosts Psychosis Risk

Regular Marijuana Use Boosts Psychosis Risk

Regularly using high-potency marijuana may increase risk of psychosis as much as fivefold.

Cannabis Use Tied to Worsening of Mania Symptoms

Cannabis Use Tied to Worsening of Mania Symptoms

Cannabis use may increase the risk for new onset of mania symptoms as much as three-fold.

Marijuana Not Recommended for Child Behavioral Disorders

Marijuana Not Recommended for Child Behavioral Disorders

Marijuana should not be used to treat autism or ADHD in children due to adverse effects and lack of evidence.

ADHD May Lead to Earlier Illegal Drug Use in Young People

ADHD May Lead to Earlier Illegal Drug Use in Young People

Those diagnosed with ADHD who began using alcohol, illegal drugs did so up to two years before those without ADHD.

Health Effects of Marijuana Legalization in Colorado

Health Effects of Marijuana Legalization in Colorado

Legalizing marijuana in Colorado has increased the number of hospital visits from marijuana-related ailments.

Veterans, Doctors Disagree Over Marijuana Legalization

Veterans, Doctors Disagree Over Marijuana Legalization

While veterans in substance abuse treatment tended to favor legalization of marijuana, many doctors express concerns over health risks.

Marijuana Use Shrinks Key Part of Brain

Marijuana Use Shrinks Key Part of Brain

While regular cannabis smoking shrinks the orbitofrontal cortex, the brain appears to compensate by increasing connectivity between neurons.

IQ Scores Unaffected by Occasional Marijuana Use

IQ Scores Unaffected by Occasional Marijuana Use

Casual cannabis use in adolescents did not decrease their IQ scores.

Study Counters Belief That Marijuana Enhances Creativity

Study Counters Belief That Marijuana Enhances Creativity

Researchers in the Netherlands find that people who smoked marijuana fared worse on thinking tasks compared to non-users.

About 10% of Americans Engage in Illegal Drug Use

About 10% of Americans Engage in Illegal Drug Use

However, low number of people who need substance-abuse treatment get it, government report shows.

Cannabis Habit More Likely with Genetic Predisposition to Schizophrenia

Cannabis Habit More Likely with Genetic Predisposition to Schizophrenia

Individuals who carry schizophrenia risk genes were more likely to use cannabis and to use it more, than those without the genes.

Clozapine Better for Comorbid Schizophrenia, Cannabis Use Disorder

Clozapine Better for Comorbid Schizophrenia, Cannabis Use Disorder

Clozapine may have advantages over risperidone for patients with schizophrenia and cannabis use disorder.

Teens with Addiction Have Few Recovery Programs

Teens with Addiction Have Few Recovery Programs

Most children's hospital do not have the resources for substance abuse treatment or are equipped with psychiatry departments.

Addiction, Health Issues a Concern as States Legalize Marijuana

Addiction, Health Issues a Concern as States Legalize Marijuana

Legalizing marijuana will lead to the sort of nationwide health problems now attributed to alcohol and tobacco, some health officials warn.

Marijuana Use May Contribute to Insomnia

Marijuana Use May Contribute to Insomnia

It's possible that insomnia leads some people to turn to marijuana, study authors say

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