Sex Science & Biology

What is the sexual response cycle? The four phases of human sexual response, from arousal to resolution, explained by science.

The neuroscience of sex: which brain areas activate, which chemicals are released, and why sex feels the way it does.

What biology drives sexual attraction? Pheromones, genes, hormones, and neural pathways behind who you're attracted to.

What is sexual orientation, how does it develop, and what does research say? A clear, non-judgmental science-based guide.

What does scientific research say about how often people have sex? Data on averages, trends, and what affects frequency.