What causes hypoglycemia?iStock/Erna Vader
Taking certain diabetes medications, skipping meals, not consuming enough carbs, and even too much exercise can throw your blood sugar off balance and cause low blood sugar. Insomnia and excessive alcohol consumption have also been linked to low glucose levels. When blood sugar dips to a level that’s too low to sustain normal functioning—in most people, that’s below 70 mg/dl—it results in a hypo attack with varying symptoms depending on its severity. People who have recurring bouts of low blood sugar may have no warning signs at all, explains Michael Bergman, MD, endocrinologist and clinical professor of medicine at NYU Langone Medical Center. This is known as hypoglycemic unawareness; the longer you’ve had diabetes, the more common it is. On the milder end of the low blood sugar spectrum, you may feel hungry, nauseated, jittery, nervous, and have cold and clammy-feeling skin. Many people also describe the feeling that their heart is racing or pounding. Low blood sugar can happen at night, too, causing nightmares and night sweats. Moderate low blood sugar can cause behavioral changes, making you fearful, confused, or angry. It can also trigger blurry vision, slurred speech, and problems with balance and walking. A layperson may even mistake you for being drunk. If left untreated, severe low blood sugar can cause loss of consciousness, seizures, irreversible brain or heart damage, coma, or even death. Here are first aid tips to handle a diabetic emergency.
Follow the 15-15 ruleiStock/Geber86
It goes like this: If your blood sugar reading is low (below 70 mg/dl), eat or drink something equal to 15 grams of fast-acting carbohydrate (4 ounces of juice). Even if you feel okay, don’t wait for the symptoms of hypoglycemia to kick in. Rest for 15 minutes and re-check your blood glucose. Still low? Repeat the process until your blood sugar reaches a healthy range. Make sure your blood sugar has returned to normal before then eating a meal, warns Elizabeth Halprin, MD, clinical director of the Adult Diabetes Section at Joslin Diabetes Center and instructor of medicine at Harvard Medical School. If your next meal is more than an hour away, snack on one carbohydrate choice to keep your blood sugar from dipping again.