According to the National Youth<unk> <unk> Survey, 19% of all<unk> ly active adolescents in the US consumed alcohol or used other drugs before their last<unk>  intercourse. In contrast, adolescents who reported no substance use were found to be the least likely to engage in<unk> <unk> taking. Most Canadian and American adolescents aged 15 to 19 years describe having had<unk>  intercourse at least one time. In the same population, 23.9% and 45.5% of young, adolescent females describe having sex with two or more<unk>  partners during the previous year. Of the males in the same population, 32.1% of Canadian males had two or more partners and 50.8% of American males also describe a similar experience. Alcohol is the most commonly used substance among youth aged 18–25 years. 10% of young adults had an alcohol use disorder in 2018, which is greater than the prevalence among all other age cohorts. Research indicates that alcohol can lead to<unk>  including lack of condom use,<unk>  intercourse with a non-primary partner, as well as lower likelihood of using contraception in general. Among older age cohorts, a similar positive trend can be observed in<unk>  when combined with alcohol use. For instance, research on older men who have sex with men (MSM) showed that the likelihood of engaging in<unk><unk>  activities increased with the use of alcohol and other drugs.
Risky sexual behavior
Multiple sex partners
Frequent urination
Sedentary lifestyle
Abuse during childbirth
Dry sex
Vaccine hesitancy
Genetic predisposition