Image via 20th Century Fox.
The cast of Grease may have been onto something – a new study suggests that summer lovin’ could be the key to conceiving, finding that sperm is more active in the main months of summer (so January and February in Australia, July and August for the northern hemisphere) and twice as active in this period compared to winter.
Doctors analysed data collection from over 5,000 men attending Northern Italy’s Centre for Reproductive Incapacity (a service offered by University Hospital of Parma), aiming to assess the presence of a possible seasonal pattern in sperm quality.
Researchers largely looked at sperm motility, which refers to the way the sperm moves and it’s ability to swim. This movement is essential in enabling the sperm to swim through a female’s cervix, uterus and fallopian tubes to reach and fertilise an egg.
They found that compared with other seasons of the year, a higher sperm motility was found during the summer. Spring was found to be the time with the highest prevalence of samples with a normal sperm pH (7.2-8), whilst the volume of sperm was higher in winter. (Post continues after gallery.)