Major fluctuations in weight gain and loss are detrimental to your health and embarrassing to explain to your friends and family.

The strongest common bond between the genders is the universally acknowledged truth that both men and women are unhappy with their hair.

My sister taught me everything I really need to know, and she was only in sixth grade at the time.

Tip the world over and everything loose falls into L.A.

As for breaking up, once the relationship is over, you never really know what went wrong; you just feel nauseous whenever the subject comes to mind. After a plane crash there's the black box that tells the FAA what caused the crack-up. Too bad there's no black box of relationships.

If sisters were free to express how they really feel, parents would hear this: "Give me all the attention and all the toys and send Rebecca to live with Grandma."

every one of us possesses a gene predisposing us toward rivalry, competition, and fits of envy with any past, present, or future siblings.