Dr. Smurf revealed the startling reality of the male reproductive system and what happens when people don't release sperm in ...

New work from UC Davis and the University of Utah shows how the 3D structure of DNA inside a germ cell commits it to develop into a sperm cell. The discovery could improve understanding of fertility ...

Researchers at Newcastle University in England report they have coaxed the first human sperm cells from embryonic stem cells, in a remarkable demonstration of how quickly the field of stem-cell ...

This article was reviewed by Darragh O’Carroll, MD. Key Takeaways: After a vasectomy, sperm production doesn’t stop — but sperm can’t travel through the vas deferens … ...

Once a sperm has broken through to an egg cell in order to fertilize it, the two cells need to hold together tightly. This occurs via a type of protein binding that is among the strongest in ...

Research into how a father’s choices — such as diet, exercise, stress, nicotine use — may transfer traits to his children has become impossible to ignore. The standard sperm-meets-egg story posits ...

If you’re trying to conceive, learning about fertilisation makes the process less of a mystery. It highlights that conception is a combination of your body being ready, the timing being right, and the ...