You're kidding right?
Looks like that Masters degree obviously wasn't in Biology :p
Actually, this is quite a common question. And many women are confused by it. And such a question has been asked by people on other forums as well.
People have different views regarding where your waist should be measured. I've read that it is the smallest part of your body. However, in health class at Uni....i learned that your waist is where your belly button is.
A Masters Degree doesn't necessarily mean that one would know about every single big topic that is out there. I also have a Masters Degree....and while I'm knowledgeable about some subjects.....I am comfortable in admitting that I don't have much knowledge in others. And to **increase **their knowledge, confident people are comfortable with asking for help or researching a topic on the Internet. ;)