Over the past four decades, sperm counts among men worldwide have dropped by more than 50 percent, according to a 2022 ...

Now, scientists are taking control of that formula. The equation for making a human is not straightforward anymore. In a ...

Scientists have created human eggs containing genes from adult skin cells, a step that someday could help women who are infertile or gay couples have babies with their own genes but would also raise ...

Human biology evolved for a world of movement, nature, and short bursts of stress—not the constant pressure of modern life. Industrial environments overstimulate our stress systems and erode both ...

New technologies could reimagine baby-making as we know it. But will they actually replace tried-and-tested (and enjoyable) ...