The study looked at how exposure to a chemical called 2-ethoxyethanol affects the testicles and sperm of mice. The researchers gave different doses of the chemical to the mice for 35 days and then observed them for another 35 days to see if they recovered. They found that the mice exposed to 2-EE had lower sperm count and motility, as well as more sperm abnormalities. However, after the exposure stopped, the mice showed improvements in their testicular health and sperm quality. This suggests that the damage caused by 2-EE is reversible, and the mice have the ability to recover on their own.