Four family members are living in a home together, and one of them is abusing prescription drugs. According to statistics from the National Institute on Drug Abuse, who is MOST likely to be misusing prescription drugs?

the oldest brother, Mark, who is 22 years old
the youngest brother, Dwayne, who is 14 years old
the mom, a professor, who is 53 years old
the dad, a chef, who is 50 years old

Based on statistics from the National Institute on Drug Abuse, the oldest brother, Mark, who is 22 years old, is most likely to be misusing prescription drugs. Young adults in their late teens and early twenties are at higher risk for prescription drug misuse compared to other age groups.