The teen gene: Switching on puberty

DID you stare into the mirror every morning, desperate for signs that your body was starting to develop like those of your classmates? Or perhaps you were the one who started sprouting breasts or facial hair years before your peers, and got teased just as much as the late developers.
Though it happens to practically everyone, the start of puberty is highly unpredictable: it can happen as naturally to a girl of 8 as to one aged 13. The range is just as wide in boys,....Read More.....................

Love (Addicted to love,Sexual chemistry,Love evolution)

The word love appears in many contexts: there’s maternal love, familial love, romantic love, sexual love, a wider love for fellow humans and religious love for God, to name but........(Read more...)

Who's the daddy? US sperm banks must be better regulated

CAREFUL, exacting, high-tech - that's the image US sperm banks like to project to their customers. They run limited genetic tests on their donors and trace medical records back three generations. They also screen for chemical exposure, drug use and even do complex psychological profiling. (Read More.........)