While we remain a nation decisively shaped by religious faith our politics and our culture are in the main less influenced by movements and arguments of an explicitly Christian character than they were even five years ago. I think this is a good thing - good for our political culture.
If I could give one tip for people - it's not an exercise or nutrition regimen. It's to walk your talk and believe in yourself because at the end of the day the dumbbell and diet don't get you in shape. It's your accountability to your word.