For the human , a temperature should be one or two degrees below the body temperature - NUMBER@1 degrees MISC@1 -LRB- NUMBER@2 degrees Fahrenheit -RRB- ; higher temperatures may be damaging to sperm count .

Human testicles work best at NUMBER@1 degrees MISC@1 -LRB- NUMBER@2 degrees Fahrenheit -RRB- when normal body temperature is NUMBER@3 degrees MISC@1 -LRB- NUMBER@4 degrees Fahrenheit -RRB- .
