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What You Will Do

Explain common myths about substance abuse.

Identify the effects of substance abuse such as alcohol, tobacco, and other drugs on physical performance.

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Terms to Know

substance abuse

addiction

smokeless tobacco

anabolic steroids

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Why Some People Use Harmful Substances

Many people use harmful substances because of peer influence. Peer influence is the effect people your own age have on your thoughts and actions.

There is nothing cool about taking risks with your health and your future.

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Substance Abuse and Its EffectsSubstance abuse can take a toll on the emotional and physical health of the user as well as the user’s family and friends.

Substance abuse

Any unnecessary or improper use

of chemical substances for

nonmedical purposes.

Terms to Know

The habitual use of many drugs and other harmful substances can lead to addiction.

Substance abuse

Any unnecessary or improper use

of chemical substances for

nonmedical purposes.

AddictionPhysical and

mental dependence.

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Substance Abuse and Its Effects

Take a closer look at the health risks associated with the use of tobacco.

Cigarettes contain over 40 poisonous chemicals.

Smoking interferes with the normal working of the lungs.

Nicotine, found in cigarettes, is addictive, making it difficult for smokers to quit.

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Substance Abuse and Its EffectsSmokeless tobacco has been popular among some athletes, especially baseball players.

Smokeless tobacco

Tobacco sniffed through the nose

or chewed.

Term to Know

8

Substance Abuse and Its Effects

Smokeless Tobacco Facts

Smokeless tobacco releases 10 times the amount of cancer-causing substances into the bloodstream than cigarettes do.

Long-term use of smokeless tobacco can lead to an elevated heart rate and high blood pressure.

Smokeless tobacco causes cancer of the mouth, lips, and gums.

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Substance Abuse and Its Effects

Alcohol has short- and long-term effects on the body:Alcohol slows down the central nervous system, impairing vision, reaction time, and coordination.

It also affects the function of the stomach and kidneys, which can result in nausea, vomiting, and dehydration.

It impairs judgment and causes an increase in risk-taking behavior.

Long-term drinking causes tissue damage and increases the risk for high blood pressure, heart rhythm disorders, heart muscle disorders, stroke, and the development of cancers and liver disease.

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Substance Abuse and Its EffectsAnabolic steroids are used as a medicine to treat specific chronic diseases; any other use is illegal and dangerous.

Anabolic steroids

Chemicals similar in

structure to the male hormone testosterone.

Term to Know

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Substance Abuse and Its Effects

Effects of Anabolic Steroids

• Lower sperm count

• Smaller testicles

• Increased risk of testicle or prostate cancer

• Larger breasts

• Infertility (inability to have children)

• Deeper voice

• More facial hair

• Smaller breasts

• Hair loss or baldness

• Sleeping problems

• Rapid weight gain

• Acne

• Upset stomach

• Difficulty urinating

Both Males and Females

Males Females

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1. Vocabulary

Physical and mental dependence.

2. Recall

Addiction causes the user to crave more and more of a harmful substance.

Lesson 5 Review

1. Vocabulary What is addiction?

2. Recall How can addiction to a substance negatively affect your functional health and fitness?

3. Recall Name three harmful effects of smokeless tobacco.

Reviewing Facts and Vocabulary

3. Recall

Smokeless tobacco can cause increased heart rate, high blood pressure, and cancer of mouth, lips, and gums.

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