sperm motility

While indeed, some sperm do have the speed and fortitude of Michael Phelps and his 23 Gold medals, a new study, published in Science Advances utilized high-speed photography and adjustments to the microscope to create three-dimensional images
If the thought of conceiving in space or the potential of one day giving birth there seem unimaginable and far-fetched notions, then think again. NASA is already studying the possibility.
Some men would give their right testicle to have access to contraception that doesn't involve pleasure-killing condoms or cringe-inducing surgical snips. Biology, unfortunately, has made targeting contraception at the female reproductive syst
Sperm cell via Shutterstock