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Marijuana is a green, brown, or gray mix of dried, crumbled leaves from the marijuana plant. It can be rolled up and smoked like a cigarette or cigar or smoked in a pipe. Sometimes people mix it in food and eat it.

Marijuana can cause problems with memory, learning, and behavior. Smoking it can cause some of the same coughing and breathing problems as smoking cigarettes. Some people get addicted to marijuana after using it for a while. It is more likely to happen if they use marijuana every day, or started using it when they were teenagers.

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Photograph of marijuana plants
Results 1 - 10 of 452 for marijuana
  1. Marijuana (National Library of Medicine)  
    Marijuana is a green, brown, or gray mix of dried, crumbled leaves from the marijuana plant. It can be rolled up and smoked ... people mix it in food and eat it. Marijuana can cause problems with memory, learning, and behavior. ...
  2. Cannabis intoxication; Intoxication - marijuana (cannabis); Pot; Mary Jane; Weed; Grass; Cannabis ... The intoxicating effects of marijuana include relaxation, ... to fast and predictable signs and symptoms. Eating marijuana ...
  3. Medical Marijuana in Certain Neurological Disorders (American Academy of Neurology) - PDF  
    ... Systematic Review for PATIENTS and their FAMILIES MEDICAL MARIJUANA IN CERTAIN NEUROLOGICAL DISORDERS ©2014 American Academy of ... review, visit AAN.com/guidelines. What is medical marijuana? Marijuana is an herb that grows naturally in ...
  4. Marijuana (Cannabis) and Multiple Sclerosis (National Multiple Sclerosis Society)  
    In this article Overview The question of whether marijuana — produced from the flowering top of the hemp plant, Cannabis sativa — should be used for symptom management in ...
  5. Marijuana From the National Institutes of Health (National Institute on Drug Abuse)  
    ... conditions (see “Is Marijuana Medicine?”, below). How is Marijuana Used? Marijuana is usually smoked in hand-rolled ... and to alter normal brain communication How Does Marijuana Affect the Brain? When marijuana is smoked, THC ...
  6. Is Marijuana Medicine? From the National Institutes of Health (National Institute on Drug Abuse)  
    ... or smoking marijuana leaves. Are “Medical” and “Street” Marijuana Different? In principle, no. Most marijuana sold in ... seizures in their children. Why Isn’t the Marijuana Plant an FDA-Approved Medicine? The FDA requires ...
  7. Early-Onset, Regular Cannabis Use Is Linked to IQ Decline From the National Institutes of Health (National Institute on Drug Abuse)  
    ... that cannabis use may harm the developing brain. Cannabis Use Correlates With Cognitive Decline The study participants ... started out with the same IQs in childhood. Cannabis May Harm the Developing Brain Dr. Meier and ...
  8. ... Use and Social Anxiety Study Parses Comorbidity of Cannabis Use and Social Anxiety Email Facebook Twitter October ... difficulties and other cannabis-related problems. SAD and Cannabis Use Severity Further analysis suggested that people with ...
  9. 12 Year Olds More Likely to Use Inhalants Than Cigarettes or Marijuana (Substance Abuse and Mental Health Services Administration)  
    ... More Likely to Use Inhalants Than Cigarettes or Marijuana According to combined data from the 2006 to ... This exceeds the rate of use of cigarettes, marijuana, hallucinogens, and cocaine, as well as the rate ...
  10. Cannabis and Cannabinoids (PDQ) From the National Institutes of Health (National Cancer Institute)  
    ... treatment (see Question 9 ). Questions and Answers About Cannabis What is Cannabis ? Cannabis , also known as marijuana , ... conditions . List of Localities That Permit Use of Cannabis for Certain Medical Conditions Enlarge Alaska (AK) Arizona ( ...
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