Examples include: a poor diet, cigarette and vape smoking, drinking alcohol, taking recreational drugs, and obesity.
“Smoking both cigarettes and vapes have been associated with a decrease in the quality of sperm, but also their amount and motility,” said Professor Minhas.
“Sperm motility is the ability of sperm to move efficiently through the woman’s reproductive tract to reach and fertilise the egg,” the professor explained.
“Non-progressive motility is sperm that does not travel in straight lines or that swims in very tight circles, and can be a factor towards male infertility.”
