Making love can be wonderful, as long as there are no risks or anxieties of an unwanted pregnancy or from sexually transmitted infections. Unfortunately, the signals that help us recognize dangers are not always so clear and, in some cases, the sexual attraction we feel towards another person, and the sincerity of our intentions, make us less attentive. What behaviors are particularly risky? Here are a few that you should pay the most attention to: lack of hygiene and promiscuous situations sex with strangers or with multiple partners simultaneously sex with people who, in turn, have sex with other partners sex with people who have infectious diseases sex with people who have AIDS (HIV-positive or with the full-blown disease) sex with drug addicts exchange of infected syringes sex with prostitutes or with men who often have sex with prostitutes.