Maybe you have too much salt in your diet?
Maybe you're dehydrated.
What?! No! Where do people get this stuff?! The internet does more to promote urban myths than disseminating real information: This is a disservice to us all. That said, if you are consuming so much vinegar you worry about it "killing" sperm maybe you are taking too much!
Not sure on sperm count either but I had much less successful sex when I did coke all the time.
She has a healthy head of hair but never wants to have sex.