dental assistants, dental hygienists and dental technicians are all good people
I wonder how the world will be without them
Agreed.   Their  educational, clinical and therapeutic services are essential to modern life.
I hardly can stand the sight of blood thats why i didn't study any of those
Psychology is the science of behavior and mind, and might be of assistance.
very true 
Philosophical interest in the mind and behavior dates back to the ancient civilizations of Egypt
But it seems the Egyptians added a bit of mysticism to it that was why it was interesting