Sperm Healthiest in Winter, Early Spring
Study finds robust sperm counts in these months explain higher birth rate in the fall.
Sperm are not suffering from the winter blues, according a new study. Researchers say that human sperm are generally at their healthiest and "swim" faster in winter and early spring, making it easier to conceive during those months, the New York Daily News reports.
The physical structure of the sperm cells was also the healthiest in the winter and early spring months, according to the study published in theAmerican Journal of Obstetrics & Gynecology. Researchers tested 6,455 semen samples over the course of three years.