Jessica Biel

I had my bad-boy moment in my teens. I'll never do that again. It wasn't pleasant, and I learned my lesson. It was sexy and mysterious, and it's like, 'Look how cool they are,' but it's just not worth it. He was lying to me and accusing me of cheating - but then I realized he was the one cheating.

In the car on my way to premieres and awards shows, I'll sit with tissue paper under my armpits so I don't soil the delicate dress fabric. The whole time, I'm telling myself, 'Please don't sweat, please don't sweat.' I throw the tissues out right before I step out of the car, and nobody ever knows! I just put on a smile and fake it.

I always loved putting on shows - when you're the youngest of seven and five are older sisters, you've got to get noticed somehow! I did puppet shows and magic shows... even ventriloquism. My doll's name was 'Dan,' and I used to write these scripts, and my schoolmate hid under the table and supplied Dan's voice.

The importance of heart health became very real for me when my father died of heart disease seven years ago. Having experienced the loss first hand, I am inspired to do everything I can to break the cycle and prevent families from losing loved ones to this preventable disease.