Not to mention your brain cell count

Ugg Chick #1: What are you drinking?
Ugg Chick #2: Diet Pepsi.
Ugg Chick #1: You shouldn't drink that, you know. It's got aspartame in it.
Ugg Chick #2: So what?
Ugg Chick #1: Don't you know that aspartame lowers your sperm count?

-- Concrete Beach, overheard by Chandheeb