The more you expect, the less grateful you will be for what you have; the less you expect, the more grateful. In 100 or so talks I’ve given on happiness, I said, “While I have good reason to assume I will be healthy tomorrow, I do not expect to be. I may have a heart attack or discover a cancerous lump, or I may have a stroke, or some other life-threatening event or illness. As a result, I walk around every day with gratitude for my continued health.”