Studies on protecting and improving sperm, count, movement, shape, and DNA integrity, through weight, diet, exercise, heat exposure, and the everyday factors that actually move the needle.
This study set out to see whether zinc in semen is linked to male infertility and whether zinc supplements improve sperm. It pooled 20 studies, comparing zinc levels and sperm…
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 study set out to see what repeated heat does to sperm. Twenty men with normal semen results were randomly split into two groups, and both had their testicles warmed…
This study looked at how sleep duration relates to semen quality and reproductive hormones in young men. It recruited 796 male college students in Chongqing, China and followed up 656…