Pain Threshold

Ok now I know you all know I am a dentist.  I like to do surgery, and by surgery I mean pulling teeth and placing dental implants.  I always find it very interesting how every one has a different pain tolerance.  For example, I had two patients last week and we took all their teeth out.  One had this procedure done in my office and we also placed two dental implants.  His lower denture will attach to these implants.  He will be very happy because his lower denture wont move around and fall out. 
Anyway, he was in my office today and was doing great ask him how they feel and he says good.  No complaining.  The other patient had her teeth removed at the local surgery center because she is very dental phobic.  She is full of complaints, She wants her new dentures to feel like real teeth.  She cant afford implants but wants a result like she has them.  It isn't going to happen!!!  It is the same as losing one of your legs and expecting the new prosthetic leg to feel exactly and function like her old leg. 
But I digress.  I find it fascinating how dynamic out bodies are.  One person may go through a procedure and come out with very little pain while another may experience the same procedure and be fine.  Now I know that it can all be related to a variety of factors but all of us know people who are very pain tolerant and some who are not.  Just a thought.  That is all.