My science class was cool. Our teacher showed us how to dissect a frog. You could see the frog's heart, stomach and everything.
Having great abs like Usher and Jessica Biel takes work. We have some tips on how you can flatten that stomach!
We’ve all heard them – or even used them – before. Sayings like: “I’ve got butterflies in my stomach,” “It’s nothing to sneeze at,” and “She’s feeling under the weather.” But why do we say these things and where did these health-re