Studies on low testosterone, what drives it, when it is real versus a measurement artifact, and what lifts it naturally.
This study set out to find which stage of sperm production is most sensitive to mild heat. Five healthy volunteers wore a specially designed underwear that held the testicles up…
This study looked at whether cutting sleep short changes testosterone in healthy young men, across two separate trials. In the first, 14 men had 4 hours in bed for 5…
This study set out to see if men's reproductive hormones follow seasonal patterns, as they do in many animals. It analyzed over 12,000 hormone tests from nearly 7,500 men aged…
This study asked what a mild, sustained rise in testicular temperature does to the chromosomes inside sperm. Five fertile volunteers wore specially designed underwear that held the testicles up against…
This study set out to find hormonal and biochemical markers that could flag overtraining syndrome (OTS) in male athletes. It compared 14 men with OTS to 25 healthy athletes and…