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

Human sperm have long been a subject of fascination—not just for their role in fertilization, but for their remarkable ability to navigate through some of the most viscous environments in the body.

Scientists have identified an RNA-based sperm aging clock driven by rsRNA length changes, which may help assess paternal ...

CHICAGO (Reuters) - U.S. researchers have found a way to coax human embryonic stem cells to turn into the types of cells that make eggs and sperm, shedding light on a stage of early human development ...