What is a good first message to post in a health and fitness group?

This is my first time as a moderator. I am trying to post a message on my Health Zone group that will act like an ice breaker for new members to open up and share a little about themselves. My goal is to have hundreds of people join this group and for them to share there experiences in health and fitness.|||Maybe something you are really dealing with, don't make something up, be truthful.