The title says it all. The abstract says:
"This was a preliminary cross-sectional analysis of the baseline data from 92 healthy men (mean ± standard deviation, age 33 ± 6 years, body mass index [BMI] 24.7 ± 6.1 kg/m2). Sleep duration was correlated with testicular volume. The significance of these findings did not change after adjustment for age and BMI, and were confirmed nonparametrically by resampling."
"This was a preliminary cross-sectional analysis of the baseline data from 92 healthy men (mean ± standard deviation, age 33 ± 6 years, body mass index [BMI] 24.7 ± 6.1 kg/m2). Sleep duration was correlated with testicular volume. The significance of these findings did not change after adjustment for age and BMI, and were confirmed nonparametrically by resampling."
