?How do doctors always keep themselves so fresh and lively

It's an act. They are usually tired, stressed and have a list as long as your arm of things they need to be doing ( that may be more life threatening than your issue). But most clinicians recognize that to get the best out of pts they need to interact in a certain way and they also realize that while your pts problem possibly is not as life threatening as some one else's, it is hugely important to the pt and therefore the pt should be given the respect to have their clinician fully engage with them, given them all their attention and to leave everything else at the consulting room door. No one wants to see a morose, grumpy Dr ( no one actually want to BE that morose, grumpy Dr either!)