when did u start using cellphone again?
Oh my...... so cell phone can act as birth control for guys? Temperature will not have long term affects on sperm count. Once the temperature is normal again sperm count should return to normal. Thats also why guys should not wear tight underwear if they plan on trying for a child. Sperm count may go down if temperature is too high resulting from the scrotum being held too closely to the body.
Go commando and turn off the cell then the swimers will be healthy