It is always healthy to smile. It is proven that those who smile more live happier and more fulfilled lives. I cannot think of any reason not to smile. The only reason for a person not to smile I might consider worth talking about are teeth. Not everybody is born with a beautiful smile. Truth is that some people have to work on their smile more than other people have to. It takes time and effort to correct a person’s teeth, but it is usually worth it. Think for example about Invisalign Austin. Today more people opt for invisalign than they do for braces. Braces are becoming obsolete these day and I believe that this happens for a reason.