Repetation is what other members give you when they like what you post, etc. Health has to do with how much you visit the site. The more you are here, the better your health. There's not much you can do with them apart from looking at them!
Welcome to Christian Forums! We're a site to welcome all Christians, as well as, those who are Agnostic or Athiest, or of another religion as well. I hope you'll take some time in getting to know the different areas and say hello to some of our members! If you have any questions please feel free to send me pm at any time (you'll need 5 posts in order to have the private messaging feature work).
Take care and God bless!!
~Tatiana
PS Health also has to do with how much you post per day. To keep your health at 100% you need to have 3 posts a day, so it's basically an average of your daily posts.