Quick question from a newbie - can someone explain what the various teams are please red/orange etc?

Is each colour for a specific goal/age group???

I think you're referring to the Biggest Loser challenge going on in the 20-somethings forum. It's just a weight loss challenge they have going on for a few weeks. The colors don't denote anything other than different teams.

Thanks for the clarification :-)

To add to the confusion, there are usually Biggest Loser challenges going on down in the exercise forum... there's one right now, but I just looked and I think there's only red and blue teams.

I think the teams are cool.
I just wish there was a separate folder for them so that the other forums don't get bogged down with them.