Seasonal trends in sperm quality in Denmark and Florida.
CohortHuman
This study set out to see if sperm quality changes with the seasons in Denmark and Florida, and whether outdoor temperatures play a role. It looked at semen samples from…
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Heat & Temperature
Peer-reviewed research on testicular temperature, thermal exposure, scrotal cooling, and their observed relationship with male reproductive health.
47Studies
44Human studies
2026Most recent
1Country
Quantifying the exposure-response relationship between temperature exposure and semen quality.
CohortHuman
This study measured how outdoor temperature tracks with semen quality, using records from 5,114 men attending a reproductive medicine centre in Wenzhou, on China's east coast. The measure it used…
Heat exposure during susceptible windows of spermatogenesis and sperm epigenetic age.
CohortHuman
Researchers followed 1,220 men at a Utah fertility clinic and matched the outdoor heat and humidity each man lived through while his sperm were forming against a molecular measure of…