It’s important to control your blood sugar, even if you aren’t diabetic. Balancing blood sugar and insulin levels lowers the risk of many serious health conditions, like heart disease and cancer. Blood sugar is glucose that your body absorbs every time you eat. It’s essential fuel for your body and brain. The levels fluctuate all the time depending on how you eat, exercise, and manage stress. Your doctor can perform simple tests to help you track your blood sugar. You can los