Which risky behavior is associated with drug and alcohol misuse?

• A. Increased risk for HIV, STDs, and other infections
• B. Decreased risk for infectious diseases
• C. No change in risk
• D. Only dental caries risk

Answer: (A)

The key idea here is how substance misuse changes behavior in ways that raise exposure to infections. When people misuse drugs or alcohol, judgment and impulse control can be impaired, leading to unsafe sexual practices such as not using protection or having more sexual partners. For those who use injectable drugs, sharing needles or other equipment dramatically increases the risk of transmitting HIV, hepatitis, and other infections. So substance misuse is linked to a higher likelihood of contracting HIV, sexually transmitted infections, and various other infections.

The other options don’t fit because they describe no change, a decrease, or focus only on a narrow outcome like dental caries. The broader pattern with risky behaviors under the influence is an increased infectious disease risk, not a reduction or no change.