Which of the following is a risk factor that increases susceptibility to STDs?

Substance abuse is a significant risk factor that increases susceptibility to STDs. Individuals who abuse substances, such as drugs and alcohol, may engage in risky behaviors, including unprotected sex, multiple sexual partners, and impaired decision-making. These behaviors contribute to a higher likelihood of exposure to sexually transmitted infections. The effects of substance abuse can also lead to a lack of self-control and a reduced ability to negotiate safer sex practices, increasing the risk of contracting STDs.

Other choices, while they can impact overall health, do not directly correlate with increased susceptibility to STDs in the same way that substance abuse does. High exercise frequency, frequent hydration, and regular diet adjustments generally promote better health and immunity rather than increasing risk. Understanding these connections is critical for developing effective prevention strategies for sexually transmitted diseases.