So what are you, a human being or a human doing?  To improve wellness should you focus on being or doing? Certainly sounds like there is a difference and it is more than semantics. 

A human doing would likely be DOING; busy, active, focusing on the immediate task and what to do next. Worrying, anxious, perhaps in the flow, but only marginally, in what might be a mindful or joyful moment.

And the human being would likely be BEING; existing mindfully in the moment, NOW, feeling blessed, calm and at peace. 

It feels like BEING is a noun state of existence and DOING is a verb state of existence.  One of the biggest challenge to wellness and peace is to find and be in a BEING state of mind regularly and profoundly; society values so highly the DOING state of mind that you forget to BE in the here and NOW.  How many times have you heard, “Smell the coffee.” or “Life is about the journey, not the destination.” 

Being active and engaged is absolutely essential and valuable, but always acting in a state of action denies the present moment its due respect and purpose.  Regularly taking time out to observe your situation and circumstance, to pause and see the glory of your present moment; to be thankful; to reflect on your very existence; to seek out something wonderful, unique, curious, special and worthy of sharing.

Actively and purposely doing the act of BEING is what makes you a human being and lets you escape the endless pursuit of activity and what to do next.