Tag Archives: sperm

Exposure to dirty city air reduces sperm quality and quantity in mice

Many health problems are linked to pollution emitted by petrol and diesel carsAlfribeiro/Getty By Adam Vaughan Dirty air in urban areas may be having an impact on sperm. Tests on mice showed that those exposed to tiny pollution particles had worse sperm quality and smaller quantities than mice who were not. Many health problems are linked… Read More »

Smoking a small amount of pot may boost sperm and testosterone, surprised researchers find

When Dr. Jorge Chavarro’s team started investigating marijuana’s effects on sperm, they had every reason to believe weed would prove detrimental to “testicular function,” because other studies had said it to be so. Instead, they found the opposite. Men who had ever smoked marijuana had significantly higher sperm concentrations and sperm counts, as well as… Read More »

How Men Continually Produce Sperm — and How that Discovery Could Help Treat Infertility

The production of sperm — otherwise known as spermatogenesis — generates more than 1,000 sperm per second in normal males. This productivity comes, in part, from a special cell type called the spermatogonial stem cell. The staying power of this stem cell has allowed many celebrities, including Robert DeNiro and Pablo Picasso, to father children… Read More »