Blake Holden, of Brooklyn, N.Y., finds his blood sugar can vary depending on the time of day he is exercising. "When I exercise in the morning, go for a run, my blood sugar spikes big time. I'm not sure why that happens. But in the evening, it doesn't; it drops."
Choose a regular exercise routine and stick to it as often as possible. This can result in consistently lower blood sugar (exercise can cause a drop in blood sugar for up to 12 to 24 hours).