I need some sales if I'm going to stay in business. Please place orders via the affiliate links on this web site. It's the same price. If you bookmark or type in the URL, I don't get credit for the sale.

QualityCounts.com Comprehensive Anti-aging Research

Life Extension Products

Amazon.com

Dr. Weil's Vitamin Advisor

Contact

Welcome to the Quality Counts. For those health conscious consumers and medical professionals that are looking to purchase nutritional supplements, vitamins, herbs, learning about medications, losing weight, health food, low carbs, high protein nutrition, and exercise, you have come to the right place. Quality Counts serves both the medical practitioner and consumer interested in nutritional therapy and alternative medicine.

Home > Anti-aging Research > Marijuana

Marijuana

News & Research:

More Evidence Links Early Cannabis Use to Psychosis - Medscape, 5/17/12 - "The uniqueness of this study lies in the demonstration of an association between early cannabis use and subsequent schizophrenia-like symptoms that persisted into adulthood and that was not explained by early anxiety or depressive disorders, or exposure to other drug and cigarette use ... cannabis use before the age of 14 years "strongly predicted" schizotypal symptoms in adulthood, independent of early adolescent schizotypy, major depression, anxiety, other drug use, and cigarette use ... what is "truly noteworthy is that cannabis use may play a role in the formation of schizophrenia symptoms beyond psychotic symptoms, such as its characteristic oddness and negative symptoms of low motivation and low social drive.""
How cannabis use during adolescence affects brain regions associated with schizophrenia - Science Daily, 5/8/12 - "This is the first study to show that the combined effects of the COMT gene with adolescent cannabis use cause physical changes in the brain regions associated with schizophrenia. It demonstrates how genetic, developmental and environmental factors interact to modulate brain function in schizophrenia and supports previous behavioural research which has shown the COMT gene to influence the effects of adolescent cannabis use on schizophrenia-related behaviours"
Obstetric Complications, Cannabis Use Predict Early Psychosis - Medscape, 4/29/12 - "the most significant risk factor, she said, is cannabis"
How marijuana impairs memory - Science Daily, 3/1/12 - "A major downside of the medical use of marijuana is the drug's ill effects on working memory, the ability to transiently hold and process information for reasoning, comprehension and learning ... Marijuana's major psychoactive ingredient (THC) impairs memory independently of its direct effects on neurons. The side effects stem instead from the drug's action on astroglia, passive support cells long believed to play second fiddle to active neurons"
Smoking pot tied to slacking off at work - msnbc.com, 2/23/12 - "People who reported smoking in the past year generally reported less dedication to work than abstainers ... their work commitment continued to decline into adulthood, and remained significantly below that of never-smoker"
Marijuana users twice as likely to cause accident - USATODAY.com, 2/9/12
Effects of marijuana ingredients on brain functioning during visual stimuli evaluated - Science Daily, 1/3/12 - "Δ9-THC significantly increased the severity of psychotic symptoms compared with placebo ... CBD may also influence the effect of cannabis use on salience processing -- and hence psychotic symptoms -- by having an opposite effect"
Driving Stoned: Safer Than Driving Drunk? - ABC News, 12/2/11 - "traffic fatalities in those states fell nearly 9 percent after medical pot became legal" - Note: First of all there is no way to tie the 9% drop in accidents to legalizing maryjane and second (just for beginners and just the tip of the iceberg, not counting many other issues) what about the retarded offspring do to DNA damage? So they might (and I emphasize “might”) have improved one problem but they’ve exasperated a multitude of other problems. Talk about warped logic.
Smoking Pot Shrinks the Brain - Medscape, 11/11/11 - "It is now accepted by most psychiatrists that smoking cannabis increases an individual's risk of psychosis, and more specifically schizophrenia ... People with a family history of schizophrenia are particularly vulnerable to the psychotomimetic effects of the drug, and are likely at particular elevated risk of developing schizophrenia if they use cannabis ... those participants who had used marijuana showed a reduction in their thalamic volume that was significant on the left side of the thalamus (F = 4.47; P = .04), and highly significant on the right (F = 7.66; P = .008). However, no loss of thalamic volume was noted in those who did not use marijuana during the 2-year period" - Duh!!! It took all this time to figure out that maryjane shrinks the brain. I figures that out 45 years ago from observing people that used it. Yet people must think that American's don't have a small enough brain already so we should legalize it.
How cannabis causes 'cognitive chaos' in the brain - Science Daily, 10/25/11 - "While the effects of the drug on individual brain regions were subtle, the drug completely disrupted co-ordinated brain waves across the hippocampus and prefrontal cortex, as though two sections of the orchestra were playing out of synch. Both these brain structures are essential for memory and decision-making and heavily implicated in the pathology of schizophrenia ... Marijuana abuse is common among sufferers of schizophrenia and recent studies have shown that the psychoactive ingredient of marijuana can induce some symptoms of schizophrenia in healthy volunteers"
Pot smoking may more than double crash risk - USA Today, 10/14/11
Smoking cannabis increases risk of depression in the case of genetic vulnerability, study finds - Science Daily, 10/10/11 - "Young people who are genetically vulnerable to depression should be extra careful about using cannabis: smoking cannabis leads to an increased risk of developing depressive symptoms ... Two-thirds of the population have the gene variant that makes one sensitive to depression ... Besides worse performances at school, the use of cannabis also increases the risk of developing schizophrenia and psychosis"
Marijuana use may double the risk of accidents for drivers, study finds - Science Daily, 10/6/11
New study proposes public health guidelines to reduce the harms from cannabis use - Science Daily, 9/22/11 - "Some of the harmful practices and patterns of use documented in the study include: ... using cannabis from a young age can be associated with a number of problems, including mental illness and dependence ... linked to a variety of health problems, including cognitive and memory performance, or risk for dependence ... there is sufficient scientific basis to recommend abstinence from cannabis use during pregnancy" - Note: My biggest pet peeve about the people that want to legalize cannabis is the lifetime of problems to the unborn children it could be causing and possible even the offspring that generation. Google "cannabis damage dna". Like anything else with the Internet, I'm sure it will also show cannabis websites that tell people what they want to hear.
Feds: Pot has no medical purpose - MSNBC, 7/8/11 - "The federal government officially declared that marijuana has no accepted medical use and should remain classified as a dangerous and addictive drug. It will remain in the same class of drugs as heroin" - I never bought off on that "I need it for my medical condition" line. Maybe I just heard it too many times as a kid when granny on the Beverly Hillbillies would say it referring the her moonshine.
Unhealthy lifestyle is associated with sexual dysfunction - Science Daily, 7/6/11 - "A new study published in The Journal of Sexual Medicine reveals that several unhealthy lifestyle factors, such as weight problems, physical inactivity, high alcohol consumption, tobacco smoking, and hard drugs are associated with sexual dysfunctions in men. Additionally, an unhealthy lifestyle is more common in persons who are sexually inactive ... Among those who had a sexual partner, risk of experiencing sexual dysfunction was greater in men who lead unhealthy lives by 71% in those with substantially increased waist circumference and more than 800% in men using hard drugs. Women who used hashish had almost 3 times increased risk of anorgasmia (difficulties or inability to reach climax during sexual activity with a partner) compared to non-users"
Drug use involved in 25% of fatal crashes, study finds - USATODAY.com. 6/23/11 - "Among drivers who tested positive for drugs, 22% were positive for marijuana, 22% for stimulants and 9% for narcotics"
Cannabis Use in Early Adolescence Especially Neurotoxic - Medscape, 6/16/11 - "there were no differences in IQ, vocabulary, or block design results when comparing the early-onset, late-onset, and control groups. However, they note, "the early-onset, but not the late-onset, group performed poorly on selected executive tasks compared with controls. In addition, the early-onset group performed poorly on the Frontal Assessment Battery compared with both the late-onset and the control groups." ... The study also showed that the early-onset group had poor performance on the Stroop Test and perseverative responding as measured by the Wisconsin Card Sorting Test. These findings suggest that "exposure to cannabis in early adolescence may lead to lower flexibility." ... The authors note that it is unclear whether starting cannabis use at a later age affects cognition"
Chronic marijuana smoking affects brain chemistry, molecular imaging shows - Science Daily, 6/6/11 - "With this study, we were able to show for the first time that people who abuse cannabis have abnormalities of the cannabinoid receptors in the brain ... Results of the study show that receptor number was decreased about 20 percent in brains of cannabis smokers when compared to healthy control subjects with limited exposure to cannabis during their lifetime. These changes were found to have a correlation with the number of years subjects had smoked. Of the original 30 cannabis smokers, 14 of the subjects underwent a second PET scan after about a month of abstinence. There was a marked increase in receptor activity in those areas that had been decreased at the outset of the study, an indication that while chronic cannabis smoking causes downregulation of CB1 receptors, the damage is reversible with abstinence"
Cannabis use precedes the onset of psychotic symptoms in young people, study finds - Science Daily, 3/1/11
Marijuana Use Linked to Risk of Psychotic Symptoms - Science Daily, 3/1/11 - "Those participants who had no psychotic symptoms and had never tried marijuana when the study began and then started using marijuana had nearly double the risk of experiencing psychotic symptoms in the future"
Cannabis use may worsen sexual dysfunction, rat study suggests - Science Daily, 2/22/11 - "While it was previously known that cannabis could affect certain receptors in the brain, it's now believed that these receptors also exist in the penis. Cannabis use may have an antagonizing effect on these receptors in the penis, making it more difficult for a man to achieve and maintain an erection"
Psychotic illness appears to begin at younger age among those who use cannabis - Science Daily, 2/7/11
Smoking pot may hasten onset of mental illness - MSNBC, 2/7/11 - "in the subjects who had been pot smokers, the psychotic symptoms began nearly 3 years earlier than in those who had not been marijuana users ... no one's been able to prove that smoking marijuana actually causes psychotic disorders like schizophrenia, but the new research adds to "growing evidence" that it does, at least in some people ... Why was there disagreement in the past over whether this effect really exists? The reasons lie in the way the individual studies might have been done ... One study found that compared to people who didn't use marijuana, people over 18 who did use it had twice the risk of mental illness, but kids under 15 had five times the risk" - Note: Regarding the second to the last statement, people will find the study they wish to believe.
Cannabis compounds found to trigger unique immune cells which promote cancer growth - Science Daily, 11/24/10 - "research, published in the European Journal of Immunology, reveals why cannabis users are more susceptible to certain types of cancers and infections ... cannabinoids can trigger a massive number of MDSCs through activation of cannabinoid receptors. This research reveals, for the first time, that marijuana cannabinoids may suppress the immune system by activating these unique cells"
Human study shows greater cognitive deficits in marijuana users who start young - Science Daily, 11/16/10
Cannabis Use Increases Psychosis Risk and Persistence of Subclinical Psychosis - Medscape, 9/7/10
A Complex Link Between Marijuana and Schizophrenia - Time, 7/21/10
Early Cannabis Use May Contribute to Psychosis-Related Outcomes in Young Adults - Medscape, 5/7/10 - "twice as likely to develop a nonaffective psychosis, 4 times as likely to have high scores on the PDI, and 3 times as likely to develop hallucinations ... This study adds to the body of emerging literature identifying early cannabis use as a risk factor for schizophrenia ... The concordance between this study and previous epidemiologic studies strengthens the argument that adolescent cannabis use is a risk factor for the development of psychosis ... The general perception that cannabis is a 'soft' drug may not be true. There is now evidence that cannabis may affect the adolescent brain[, permanently altering] its developmental trajectory"
Long-time cannabis use associated with psychosis - Science Daily, 3/1/10
Teen Cannabis Use Predicts Depression - Clinical Psychiatry News, 2/10
Marijuana ineffective as an Alzheimer's treatment - Science Daily, 2/8/10
Teen Marijuana Use Might Have Lasting Effects on Mood, Anxiety - US News and World Report - U.S. News, 12/31/09
Daily Pot Smoking May Hasten Onset of Psychosis - Science Daily, 12/20/09 - "The researchers analyzed data from 109 hospitalized patients who were experiencing their first psychotic episode. The results showed that patients who had a history of using marijuana, or cannabis, and increased to daily pot smoking experienced both psychotic and pre-psychotic symptoms at earlier ages"
Cannabis damages young brains more than originally thought, study finds - Science Daily, 12/17/09 - "The damaging effects of this illicit drug on young brains are worse than originally thought ... daily consumption of cannabis in teens can cause depression and anxiety, and have an irreversible long-term effect on the brain"
Teen Use of Marijuana Tied to Later Depression - Medscape, 12/8/09 - "Among subjects who had used cannabis more than 10 times, the odds ratio was 1.33, indicating a dose-dependent relationship ... A possible biological explanation for this association is that "receptors such as the cannabinoid receptors may act as moderators,""
What Proportion Of Psychotic Illness Is Due To Cannabis? - Science Daily, 9/29/09
Active Ingredients In Marijuana Found To Spread And Prolong Pain - Science Daily, 8/13/09 - ""endocannabinoids," which are made within the human body, can actually amplify and prolong pain rather than damping it down"
Growing Evidence Of Marijuana Smoke's Potential Dangers - Science Daily, 8/5/09
How Marijuana Causes Memory Deficits - WebMD, 8/3/09
Marijuana Smoke Linked to Cancer - WebMD, 6/23/09
Marijuana Damages DNA And May Cause Cancer, New Test Reveals - Science Daily, 6/15/09 - "Using a highly sensitive new test, scientists in Europe are reporting "convincing evidence" that marijuana smoke damages the genetic material DNA in ways that could increase the risk of cancer"
Marijuana Use Linked to Nonseminoma Testicular Tumors - Medscape, 4/14/09
Men who smoke pot more likely to be in road accidents - USATODAY.com, 4/11/09
Daily Consumption Of Cannabis Predisposes To Appearance Of Psychosis And Schizophrenia, Study Finds - Science Daily, 3/25/09 - "66% of the patients with psychosis who participated in the study and had a normal neurodevelopment admitted to have consumed cannabis daily or almost every day, whereas 43% of the participants with markers of an abnormal neurodevelopment (those already indicated: bad previous social and academic behaviour, a family history and a "clumsier" attitude when they carry out tasks of motor coordination and complex motor acts) were drug users too"
Cannabis Use, Dangerous Driving Behaviors Interrelated - Science Daily, 3/11/09
Marijuana Use Linked To Increased Risk Of Testicular Cancer - Science Daily, 2/9/09 - "being a marijuana smoker at the time of diagnosis was associated with a 70 percent increased risk of testicular cancer. The risk was particularly elevated (about twice that of those who never smoked marijuana) for those who used marijuana at least weekly and/or who had long-term exposure to the substance beginning in adolescence"
Marijuana testicular cancer link - BBC News, 2/9/09 - "being a regular marijuana user doubled the risk compared to those who never smoked it"
Heavy Marijuana Use May Damage Developing Brain In Teens, Young Adults - Science Daily, 2/2/09
Pot-induced psychosis a schizophrenia signal? - MSNBC, 11/3/08
Marijuana Use Takes Toll On Adolescent Brain Function, Research Finds - Science Daily, 10/15/08 - "chronic, heavy marijuana use during adolescence – a critical period of ongoing brain development – is associated with poorer performance on thinking tasks, including slower psychomotor speed and poorer complex attention, verbal memory and planning ability"
Cannabis Use Linked to Early Age at Onset of Psychosis - Medscape, 9/11/08
Smoking Cannabis May Impair Function of Large Airways - Medscape, 8/1/08
Schizophrenia Linked To Dysfunction In Molecular Brain Pathway Activated By Marijuana - Science Daily, 7/7/08 - "The use of marijuana in individuals with schizophrenia appears to worsen this deficit in GABA synthesis"
Oral Cannabis Ineffective In Treating Acute Pain, Study Finds - Science Daily, 6/24/08
Cannabis 'can harm foetal brain' - BBC News, 6/16/08 - "Smoking cannabis while pregnant could harm the developing foetal brain ... the backbones of higher cognitive functions - do not develop normally when endocannabinoid signalling is disturbed"
Report: Marijuana potency rises - USATODAY.com, 6/12/08
Marijuana Use May Shrink the Brain - WebMD, 6/2/08 - "the hippocampus, which is thought to regulate memory, was an average of 12% smaller among marijuana users, compared with people who didn't smoke pot. The amygdala, involved in emotion and memory, was an average of 7% smaller ... The study also suggests that long-term marijuana users were more likely to report symptoms associated with mental disorders"
Long-term Cannabis Users May Have Structural Brain Abnormalities - Science Daily, 6/2/08
Marijuana Users Have Increased apoC3, Triglycerides - Medscape, 5/19/08 - "Heavy, chronic use of marijuana causes increased levels of apolipoprotein C3 (apoC3), which in turn results in a major increase in triglyceride levels"
Take this Marijuana Message to Heart - WebMD, 5/13/08 - "the active chemical in marijuana, THC, causes the body to overproduce a protein called ApoC-111. ApoC-111 is linked to high triglycerides (blood fats) because of problems with the breakdown of blood fats in the body"
Feds: Teen Use of Pot Can Lead to Dependency, Mental Illness - Intelihealth, 5/12/08
White House Warns of Pot-Depression Link - WebMD, 5/9/08
Teen Marijuana Use Linked to Later Illness - washingtonpost.com, 5/8/08 - "Teenagers who smoke marijuana put themselves at risk for future mental illness and higher rates of depression ... studies show links between marijuana use and risk of mental illness later in life, and that use could increase the risk by as much as 40 percent ... teenagers who smoke marijuana at least once a month are three times more likely to have suicidal thoughts than non-users"
Withdrawal Symptoms From Smoking Pot? - WebMD, 5/7/08
Smoke Pot, Get Lead Poisoning? - WebMD, 4/9/08
Sex, Drugs, and Cancer? - WebMD, 3/11/08 - "Head and neck cancers that were positive for HPV 16 were associated with having more oral sex partners and smoking more marijuana ... Head and neck cancers that were negative for HPV 16 weren't linked to sex or marijuana. Instead, they were tied to smoking tobacco, drinking alcohol, and having poor oral hygiene"
Daily Cannabis Smoking Linked With Increased Steatosis Severity - Medscape, 3/5/08
Marijuana use associated with increased risk of mortality among acute MI patients - theheart.org, 3/5/08
Marijuana, MI, and Mortality - Medscape, 3/3/08
Pot Use May Hamper Thinking in MS - WebMD, 2/13/08 - "Marijuana smokers had slower average reaction times on a test that challenged them to process information quickly. And they were more likely to report a history of psychiatric diagnoses, most of which were depression or anxiety diagnoses"
Marijuana Linked to Early Gum Disease - WebMD, 2/5/08 - "Compared with people who smoked no pot at all, heavy marijuana users were three times more likely to have at least one gum site with evidence of severe gum disease and 60% more likely to show evidence of mild gum disease"
Lung Cancer Risk Increases With Cannabis Use - oncologystat.com, 1/29/08 - "smoking a single joint is the same as smoking 20 cigarettes in terms of lung cancer risk ... cannabis smoke contains higher levels of carcinogens than cigarette smoke ... cannabis smokers are more likely to inhale more smoke deeply and hold it in their lungs longer, allowing for more carcinogens to be deposited in the lungs. Marijuana cigarettes do not usually have proper filters and are smoked to the tip, which also increases the amount of smoke inhaled ... smoking 1 joint daily for 10 years or 2 joints daily for 5 years increased the risk of lung cancer 5.7 times"
Marijuana Withdrawal As Bad As Withdrawal From Cigarettes - Science Daily, 1/25/08 - "overall withdrawal severity associated with marijuana alone and tobacco alone was of similar frequency and intensity. Sleep disturbance seemed to be more pronounced during marijuana abstinence, while some of the general mood effects (anxiety, anger) seemed to be greater during tobacco abstinence"
Marijuana Smokers Face Rapid Lung Destruction -- As Much As 20 Years Ahead Of Tobacco Smokers - Science Daily, 1/23/08 - "the mean age of marijuana-smoking patients with lung problems was 41, as opposed to the average age of 65 years for tobacco-smoking patients"
Pot Slows Cancer in Test Tube - WebMD, 12/26/07 - "The researchers are quick to point out that much more study is needed to find out whether these test-tube results apply to tumor growth in animals and in humans"
Marijuana Smoke Contains Higher Levels Of Certain Toxins Than Tobacco Smoke - Science Daily, 12/17/07 - "ammonia levels were 20 times higher in the marijuana smoke than in the tobacco smoke, while hydrogen cyanide, nitric oxide and certain aromatic amines occurred at levels 3-5 times higher in the marijuana smoke"
Study Shows Toxins in Marijuana Smoke - WebMD, 12/14/07 - "Ammonia levels were up to 20 times higher in marijuana smoke than in tobacco smoke. Levels of hydrogen cyanide and nitrogen-related chemicals were three to five times higher in marijuana smoke than in tobacco smoke"
Cannabis Smoking Contributes to Pulmonary Disease - Medscape, 12/13/07 - "Cannabis smoking was associated with an increased risk of wheeze, chest tightness, and cough ... Cannabis smokers had twice the risk of chronic bronchitis and a 70% increased risk of asthma diagnosed after age 16 years ... Cannabis and tobacco smoking were both associated with a reduction in the FEV1/FVC ratio ... An increased percentage of low density lung tissue was associated with cannabis smoking ... one joint was pathologically equivalent to 2.5 to 5 tobacco cigarettes"
Teens Who Smoke Marijuana But Not Tobacco Are Different From Other Teen Groups - Science Daily, 11/5/07
Too much cannabis 'worsens pain' - BBC News, 10/24/07
Cannabis: Potent Anti-depressant In Low Doses, Worsens Depression At High Doses - Science Daily, 10/23/07
1 Joint Equals Up to 5 Cigarettes - Intelihealth, 8/1/07
Smoking Pot May Damage Lungs - WebMD, 7/31/07
Cannabis harm worse than tobacco - BBC News, 7/30/07
Are Smoking Pot and Psychosis Linked? - WebMD, 7/26/07
Study: Marijuana may increase psychosis risk - USA Today, 7/26/07 - "even infrequent use could raise the small but real risk of this serious mental illness by 40% ... The scientists found a more disturbing outlook for "heavy users" of pot, those who used it daily or weekly: Their risk for psychosis jumped to a range of 50% to 200%"
How Pot Harms Fetal Brain Development - WebMD, 5/24/07
Marijuana Worsens COPD Symptoms In Current Cigarette Smokers - Science Daily, 5/21/07
Doctors: Pot Triggers Psychotic Symptoms - Intelihealth, 5/1/07
Does Pot Triggers Psychotic Symptoms? - Time, 4/30/07
Cannabis 'disrupts brain centre' - BBC News, 4/30/07 - "those who took THC showed reduced activity in an area of the brain called the inferior frontal cortex, which keeps inappropriate thoughts and behaviour, such as swearing and paranoia in check"
Marijuana Cuts Lung Cancer Tumor Growth In Half, Study Shows - Science Daily, 4/17/07
Long-term Marijuana Smoking Leads To Respiratory Complaints - Science Daily, 2/14/07
Caution: Marijuana may not be lesser evil - USA Today, 2/5/07
Cannabis 'affecting young minds' - BBC News, 12/10/06
Why Marijuana May Affect Memory - WebMD, 11/20/06
Marijuana Use Causes Early Pregnancy Failure - Science Daily, 8/4/06
FDA OKs Return of 'Marijuana' Drug - WebMD, 5/18/06
Marijuana-like Compounds Suppress The Immune Response - Science Daily, 4/26/06
Smoking Marijuana May Dim Memory - WebMD, 3/13/06
Marijuana Use, Schizophrenia Show Similar Patterns in Developing Adolescent Brains - Doctor's Guide, 12/5/05
Cannabis doubles fatal crash risk - BBC News, 12/2/05
Cannabis increases car-crash risk - BBC News, 4/30/05
More Evidence Of Cannabis-induced Psychosis - Science Daily, 4/19/05
Cannabis medicine 'causes harm' - BBC News, 4/1/05
Drug 'doubles mental health risk' - BBC News, 3/1/05
Regular Cannabis Use May Increase Risk Of Stroke - Doctor's Guide, 2/21/05
Marijuana's Effects Linger in the Brain - WebMD, 2/7/05
Marijuana Associated With Same Respiratory Symptoms as Tobacco - Doctor's Guide, 1/13/05
Cannabis raises risk of psychosis - BBC News, 12/1/04
Study Finds Cannabis Triggers Transient Schizophrenia-like Symptoms - Science Daily, 6/15/04
Heavy, Long-Term Use of Cannabis Might Be Linked to Numerous Negative Features in American Users - Doctor's Guide, 1/2/04
Portly Pot Puffers Beware - CBS News, 10/17/03
Marijuana Smoking Doesn't Kill - WebMD, 9/18/03
Marijuana Withdrawal Syndrome a Real Entity - Medscape, 8/8/03
Prenatal Exposure to Marijuana Is Tied to Hearing Problems - Clinical Psychiatry News, 7/03
Heavy Marijuana Use Doesn't Damage Brain - WebMD, 7/1/03
Pot and Pregnancy: A Potent Mix? - Dr. Weil, 5/21/03
Cannabis May Suppress Immune System - WebMD, 4/15/03
Smoking Marijuana While Pregnant Could Have Lasting Effect on Fetus - WebMD, 3/25/03
Twin Study Adds Fuel To Marijuana Debate - Psychiatric Times, 3/21/03 - "Findings from a new study of more than 300 sets of twins show that early use of marijuana, independent of genetic background and environment, is associated with later drug use and abuse"
Synthetic Marijuana May Ease Depression - WebMD, 12/2/02
Pot May Cause Depression, Schizophrenia - WebMD, 11/21/02
Pot as Tough on Lungs as Tobacco - WebMD, 11/12/02
Study of Marijuana to Treat Glaucoma Turns out to be a Bust - Doctor's Guide, 10/25/02
Marijuana-Derived Compound Targets Pain, Inflammation - Intelihealth, 8/22/02
Survey Of MS Patients Suggests Widespread Use of Cannabis for Pain and Symptom Relief - Doctor's Guide, 8/20/02
Marijuana-Like Compound Banishes Fear - WebMD, 8/2/02
Jury's Still Out On Use Of Marijuana Derivative For MS - Intelihealth, 5/14/02
Marijuana's So-Called Gateway Effect - WebMD, 4/5/02
Pot Lowers IQ - WebMD, 4/2/02
Heavy Pot Use Impairs Brain Functioning - Intelihealth, 3/6/02
Long-Term Pot Smokers Risk Brain Damage - WebMD, 3/5/02
Link Between Cannabis Abuse And Depression Needs Further Investigation - Doctor's Guide, 1/2/02
Marijuana-Linked Memory Problems Not Lasting - Doctor's Guide, 11/9/01
Marijuana Withdrawal Similar To That of Nicotine - Doctor's Guide, 11/9/01
Pot Is Part of a Heart Un-Healthy Lifestyle - WebMD, 6/15/01
Marijuana Use May Trigger Acute CNS Infarction - Doctor's Guide, 3/4/01
Heavy Pot Use Can Cause Physical Dependence - WebMD, 11/27/00
Marijuana may be greater cancer risk than tobacco, research suggests - CNN, 6/21/00
Regular Marijuana Use Could Lead to Emphysema - WebMD, 3/20/00
More Evidence Shows Marijuana Is Addictive - Doctor's Guide, 6/9/98
Effects of Long-Term Marijuana Use on the Brain Shown Similar To Other Addicting Drugs - Doctor's Guide, 6/27/97
Marijuana Alters Immunity As Well As Mood, Researcher Says - Doctor's Guide, 6/9/97

Abstracts:

Cannabis Use, Ischemic Stroke, and Multifocal Intracranial Vasoconstriction: A Prospective Study in 48 Consecutive Young Patients - Stroke. 2011 Apr 21 - "Multifocal angiopathy associated with cannabis consumption could be an important cause of ischemic stroke in young people"
Cannabis Use and Earlier Onset of Psychosis: A Systematic Meta-analysis - Arch Gen Psychiatry. 2011 Feb 7
Early endothelial dysfunction as a marker of vasculogenic erectile dysfunction in young habitual cannabis users - Int J Impot Res. 2008 Nov-Dec;20(6):566-73 - "We conclude that early endothelial damage may be induced by chronic cannabis use (and endocannabinoid system activation); insulin resistance may be the hallmark of early endothelial dysfunction and may concur to determine vascular ED in the absence of obesity"
Atrial fibrillation and marijuana smoking - Int J Clin Pract. 2007 Nov 21 - "Marijuana smoking affects the circulatory system triggering various cardiovascular events. Of note, recent case reports indicate a possible association with atrial fibrillation (AF). In this article, we provide a brief systematic review of all reported cases implicating marijuana smoking in AF development and we concisely discuss the potential underlying mechanisms as well as the clinical implications of this emerging association"
Cannabis and psychosis - Lancet. 2007 Nov 3;370(9598):1540
Genetic effects of marijuana - Int J Addict. 1990-1991;25(1A):19-33 - "Marijuana and its constitutive cannabinoids--tetrahydrocannabinol (THC), cannabinol (CBN), and cannabidiol (CBD)--markedly affect mammalian cells. Cytogenetic studies have revealed that cannabinoids induce chromosome aberrations in both in vivo and in vitro studies. These aberrations include chromosomal breaks, deletions, translocations, errors in chromosomal segregation, and hypoploidy, and are due to the clastogenic action of cannabinoids or to cannabinoid-induced disruption of mitotic events or both. Conflicting reports of the cytogenetic effects of cannabinoids are partially explained by the different experimental protocols, cell types, and animals used by investigators. Cannabinoids also suppress macromolecular synthesis (DNA, RNA, and protein) as well as reduce the level of histone gene expression. In general these studies show that cannabinoids are detrimental to the health of an individual"
Effects of administration of cannabis resin during pregnancy on emotionality and learning in rats' offspring - Percept Mot Skills. 1980 Apr;50(2):359-65 - "Injection of cannabis resin as a saline-Tween 80 solution to pregnant rats resulted in pups having lower body weight, higher emotionality, poorer learning capacity, and paradoxically higher brain weight and DNA content. The cannabis appeared directly to have caused the inferior growth rate of the pups which in turn affected emotionality and learning"