Natural vs Un-Natural

If I'm building a home, should I be choosing natural building materials or man-made, synthetic ones?  The answer is really not as easy as you think.  Remember this...just because something is natural, it doesn't automatically make it safe for you and your family.  Just ask anyone who used to work in the asbestos industry.  Jay and I have a great one on one discussion about natural ingredients and natural aromas vs synthetic and odor-less ingredients.  Thanks for listening!