Peer-reviewed research concerning heat stress, summarized and appraised in plain language with every source cited.
This experiment followed what whole-body heat does to sperm as they are made, in laboratory mice. Adult males were held at 37 to 38 degrees Celsius (98.6 to 100.4 degrees…
This experiment asked whether heat reaches sperm that have already been made, rather than only the ones still forming. Fourteen C57BL/6 mice (a laboratory strain bred so that individuals within…
This experiment asked whether heat makes sperm worse at their actual job, or simply leaves fewer of them. Male mice were held at 36 degrees Celsius (96.8 degrees Fahrenheit) for…