Knowing how to easily manipulate the people around you. Not exactly a good thing though.
Yes, depending on the perspective. If it's going to be because they want you to, than no. If it's going to be a continuous thing to lose weight, get in shape, etc, than yes.
:)
Genetic testing can be used to tell if a person carries mutation of the CF (cystic fibrosis) gene. The test looks at a person's DNA, which is taken from cells in a blood sample or from cells that are gently scraped from inside the mouth.
Extra fact: More than 10 million Americans are carriers of one mutation of the CF gene.
Hope I helped!