Question

which statement describes a substance - free lifestyle?
teeth, gums, skin, and hair all benefit from a substance - free lifestyle.
a life free of alcohol, tobacco, and drugs guarantees personal happiness.
future fertility is decreased by eliminating alcohol, tobacco, and drugs.
when smokers discontinue cigarettes, the health of others around them is not affected.

Explanation:

• Analyze each option:
• Option 1: A substance - free lifestyle (free of alcohol, tobacco, drugs) can improve oral health (teeth, gums) and the condition of skin and hair as these substances can have negative impacts on these body parts.
• Option 2: A substance - free lifestyle does not guarantee personal happiness as happiness is a complex concept influenced by many factors like relationships, career, etc.
• Option 3: Eliminating alcohol, tobacco, and drugs usually improves future fertility as these substances can harm reproductive systems, so this statement is incorrect.
• Option 4: When smokers discontinue cigarettes, the health of others around them is affected positively (less exposure to second - hand smoke), so this statement is incorrect.

Answer:

The correct option is: Teeth, gums, skin, and hair all benefit from a substance - free lifestyle.