Do women notice it if you sag a little and see a little bit of your underwear?
I always wondered that myself. I can understand a little underwear (sometimes they ride up while the pants shift lower), but anything else is just sick.
boxers increase the sperm count.
Yup. Many people with low sperm counts are advised to wear boxers. The scrotum is purposely shaped to keep the testicles away from the heat of the body. In fact, if your "family jewels" are too hot, there could be a chance of deformed sperms.