Ch 9: Holt Lifetime Health Chapter 9: Understanding Drugs & Medicines

About This Chapter

The Understanding Drugs & Medicines chapter of this Holt Lifetime Health Companion Course helps students learn the essential lessons associated with understanding drugs and medicines. Each of these simple and fun video lessons is about five minutes long and is sequenced to align with the Understanding Drugs & Medicines textbook chapter.

How It Works:

  • Identify the lessons in the Holt Understanding Drugs & Medicines chapter with which you need help.
  • Find the corresponding video lessons with this companion course chapter.
  • Watch fun videos that cover the drugs and medicine topics you need to learn or review.
  • Complete the quizzes to test your understanding.
  • If you need additional help, rewatch the videos until you've mastered the material or submit a question for one of our instructors.

Students will learn:

  • Why people use drugs
  • Types of drugs
  • Interactions of drugs
  • Methods of taking drugs
  • Drug abuse treatment
  • Effects of drugs on the brain and nervous system

Holt is a registered trademark of Houghton Mifflin Harcourt, which is not affiliated with Study.com.

7 Lessons in Chapter 9: Holt Lifetime Health Chapter 9: Understanding Drugs & Medicines
Test your knowledge with a 30-question chapter practice test
Why Do People Use Drugs?

1. Why Do People Use Drugs?

In this lesson, we'll explore some of the reasons people use drugs. We'll look at four different examples of drug use, including prescription drugs, stimulants, alcohol, and marijuana.

Types of Drugs: Classifications & Effects

2. Types of Drugs: Classifications & Effects

This lesson will describe the six major classes of psychoactive drugs, give examples of substances in each class, and explain what they cause a person to experience in the short-term and the long-term.

Overview of Psychiatric Drugs: History, Types & Uses

3. Overview of Psychiatric Drugs: History, Types & Uses

Have you ever been curious about how psychiatric drugs work, or more specifically, which psychiatric drugs are used for which disorders? This lesson outlines some common psychiatric disorders and how various medications are used to treat and subdue psychotic symptoms.

Drug Interactions With Other Drugs & Activity Within the Body

4. Drug Interactions With Other Drugs & Activity Within the Body

Drugs can affect your body in quite a few ways. You'll learn about how they affect you and how they interact with one another to affect you by learning about tolerance, cross-tolerance, the additive effect, synergism, potentiation, and antagonism.

Routes of Drug Administration: Oral, Topical, Inhalation & Injection

5. Routes of Drug Administration: Oral, Topical, Inhalation & Injection

The way by which illicit drugs can be administered or taken into the body are numerous. These routes include the oral route, transdermal, inhalation, and intravenous injection.

Drug Abuse: Physical Consequences and Treatment

6. Drug Abuse: Physical Consequences and Treatment

The kidneys, heart, lungs, and skin are all affected by drug use, sometimes severely so. You'll learn how and also the many different ways by which a person can be treated for substance abuse in this lesson.

How Drugs Affect the Brain & Nervous System

7. How Drugs Affect the Brain & Nervous System

Have you ever wondered how and why drugs affect the brain? This lesson goes over the basics of major drug classes and how they cause the central nervous system, namely the brain, to malfunction.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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