HEALTH
Glencoe Health 2005.pdf

Hashish or hash is a stronger form of marijuana

Info icon This preview shows pages 611–614. Sign up to view the full content.

first drug teens experiment with after alcohol. Hashish, or hash, is a stronger form of marijuana. Studies have shown that an individual who uses marijuana is 17 times more likely to use cocaine than one who has never used marijuana. Contrary to popular opinion, this drug is not harmless. All forms of marijuana are mind altering and can damage the user’s health. When combined with other drugs and other substances, such as alcohol, marijuana can be deadly. arijuana Marijuana is an illegal drug. It affects your memory, concentration, coordination, and reaction time. What strategies do you have for avoiding marijuana use? Knowing the risks of substance abuse can help you stay drug free. Write three reasons for saying no to drugs. Then modify these reasons into effective refusal statements that you could use if someone offered you drugs. 598 Chapter 23 Medicines and Drugs
Image of page 611

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

T HE H EALTH R ISKS OF M ARIJUANA The effects of marijuana use vary from person to person and can be influenced by an individual’s mood and surroundings. In all cases, however, marijuana poses serious health risks. Marijuana and Addiction As with other mood-altering drugs, marijuana raises levels of a brain chemical called dopamine. This chemical produces a pleasur- able feeling. In some users the drug triggers the release of so much dopamine that a feeling of intense well-being or elation is reached. When the drug wears off, however, the pleasure sensation stops, often dramatically. This abrupt letdown is called a crash. Marijuana contains more cancer-causing chemicals than tobacco smoke and carries the same health risks as smoking tobacco. Marijuana also interferes with the immune system, so the user becomes more sus- ceptible to infections. Many of the physical effects of marijuana use are summarized in Figure 23.3. 599 Lesson 3 Marijuana, Inhalants, and Steroids M arijuana contains 421 different chemicals, including d-alpha-tetrahydrocannabinol (THC), the main psychoactive ingredient in marijuana. THC is stored in body fat, and traces of it can be present in the blood for as long as a month. It has a lasting effect on the brain. This means that a marijuana user can fail a drug test weeks after using the drug. Hallucinations and paranoia Impaired short-term memory, reaction time, concentration, and coordination Distorted sense of time, sight, touch, and sound Decreased initiative and ambition Bloodshot eyes Dry mouth Lung irritation, coughing Heart and lung damage Increased risk of lung cancer Weakened immunity; increased susceptibility to colds, flu, and viral infections Increased appetite, leading to weight gain In pregnant females, increased risk of stillbirths and birth defects Changed hormone levels, affecting normal body development in teens In females, increased testosterone levels and risk of infertility In males, lowered sperm count and testosterone levels HS_HEALTH_U07_C23_L3 12/8/03 1:21 PM Page 599
Image of page 612
Mental/Emotional Health Consequences Marijuana users experience slow mental reflexes and may suffer sudden feelings of anxiety and
Image of page 613

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

Image of page 614
This is the end of the preview. Sign up to access the rest of the document.
  • Spring '15
  • yes
  • Books

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern