The reason for the underwater test was that my mom wanted to do something instead of weighing myself on a scale. She heard about a underwater weighing test from my doctor last year and she wanted to give it a try to both, myself and my sister.
You know if you've ever seen girls that grab their hair and they look like they are going to pull their hair up, but don't.
My sister had to wear tight pants and a sports bra, so she enjoyed every minute of going underwater.
Seriously, what do you want to know?