Researchers have captured the very first real-time, three-dimensional images and videos of a human embryo implanting into collagen designed to mimic uterine tissue —a key stage in reproduction. The ...

For a long time, having children has been a young person’s game. Although ancient records are sparse, researchers estimate that, for most of human history, women most typically conceived their first ...

Scientists have detected microplastics in human semen and follicular fluid, the liquid that surrounds an egg in an ovarian follicle. "This is not an isolated finding –– it appears to be quite common," ...

Recently, scientists have reviewed the existing literature to understand how space travel, space radiation, and microgravity affect human reproductive functions. This review was published in Npj ...

We all know the drill for reproduction—sperm meets egg. But mice aren’t people. And the same recipe doesn’t work for human reproductive cells. One reason, according to Dr. Mitinori Saitou at Kyoto ...

It’s time to talk about the birds, the bees and the PTFEs. They’re already in our lungs, livers, kidneys, blood and even our brains. New research out Tuesday in the journal Human Reproduction reveals ...

A team of researchers has found microplastics in all 40 semen samples they examined from healthy men, highlighting the urgent need to study how these tiny particles could affect human reproduction. In ...

Get inspired by a weekly roundup on living well, made simple. Sign up for CNN’s Life, But Better newsletter for information and tools designed to improve your well-being. Endocrine disruptors ...

Copenhagen, Denmark: More than three months after suffering from mild COVID infection, men have lower sperm concentrations and fewer sperm that are able to swim, according to new findings presented ...

Only about one out of three conceptions leads to birth. 1 Approximately a third of embryos fail to attach to the uterus, while another third is lost after the embryo implants. “Human reproduction is ...

Microplastics are thousands of times smaller than a grain of rice, and they can wreak havoc on the human reproductive system. A new study found them in the testes of both humans and dogs. The rise of ...