When sewing at home I quit every two hours and take my dog out for a walk. We walk 2 miles if it isn't raining. Sometimes we get in a 8 mile walk if I sew all day. It takes me about 40 min. with the dog for two miles. She stops a lot. LOL. I feel renewed after each one. I count my computer time as sewing time. I go to a lot of workshops and sew days every month and I never get tired sewing there. Too much to walk around and see what others are working on, eating, talking and laughing. I don't cook breakfast or lunch and we eat a salad for dinner with whatever DH grills.