Perhaps there's a physical place you can go; a favorite walk, a quiet room in the house, or even just a place to sit for a moment in the middle of the day. 
This stress-free 'place' might also be an inner place you can access with a shift in thinking. Do you remember the feeling of doing something that brings you joy? How about a time with someone who's near to your heart? 
Taking a moment to remember these experiences can shift your mental andphysical state profoundly. Would you like to experience that? Then, take some time and remember.