Four things he needs to do

1. Quit smoking. Cigarettes hurt sperm motility and sperm count.

2. Cut back on drinking. More than one daily drink may affect sperm production.

3. Get down to a reasonable weight. A 20-pound increase raises his odds of infertility by 10 percent.

4. Avoid hot tubs and saunas. Heat may hinder his ability to produce healthy, motile sperm.