Lung capacity starts to diminish in your late 20's. But something as simple as taking deep breaths several times a day can minimize the lung damage dramatically.
People seem to think that honey is healthier than sugar.
But since it is sweeter than sugar if you use it in, say, tea you can use less. If you want to cut out many calories with what you put on your toast, muffins or bagels, instead of butter use apple butter. It's used in Ethiopian cooking. It's available in health food stores perhaps also in those health food aisles in large food stores. Since it's unrefined, it still contains its vitamins and mineral in a rich outer bran layer.