Sex is really strange You ask people, ?" "What's your favorite activity?"

性爱是件很奇怪的事,如果你问别人，“你最喜欢做的事是什么“

耶鲁公开课 - 心理学导论课程节选

To some extent, if we put you in an fMRI scanner and observed what you're doing in real time, by looking at the activity patterns in your brain we can tell whether you are thinking about music or thinking about sex.

某种程度来讲,如果我们对你进行,功能性核磁共振成像扫描,观察你的实时活动,通过观察你的大脑活动模式,我们可以看出你是想到了音乐,还是想到了性

耶鲁公开课 - 心理学导论课程节选

The study also found that women with raised levels of a molecule called sex hormone binding globulin, which reduces the activity of sex hormones, were at lower than usual risk.

BBC: Sex hormones raise breast risk

There are mathematical formulas that can help you figure this out based on your age, height, sex, weight and activity level.

CNN: How should I eat to build muscle mass?

Diggs works primarily with black gay, bisexual and transgendered men, a community that is disproportionately affected by HIV and AIDS. In 2010, the CDC estimated that 72% of new HIV infections in young people were transmitted through same-sex, male sexual activity.

CNN: Why youths aren't getting tested for HIV