Low blood sugar, or hypoglycemia, affects the body’s normal functions and can lead to seizures or nervous system damage in severe cases, according to Healthline. Symptoms include blurry vision, fast heartbeat, sudden nervousness or mood changes, and unexplained fatigue.
Low blood sugar can be a life-threatening condition, which is why it requires immediate treatment, notes Healthline. It usually happens in diabetics who take medications that increase the body’s insulin levels. Diabetics who take excessive medication, skip meals or exercise too much may experience low blood sugar.
Hypoglycemic unawareness is a critical condition where an individual does not know that her blood sugar level is decreasing, explains Healthline. It sometimes occurs rapidly without warning symptoms, causing a person to faint, undergo a seizure or go into a coma.
If a person experiences low blood sugar, consuming 15 grams of fast-digesting carbohydrates, such as 1 tablespoon of honey or sugar, three to four pieces of glucose tablets or hard candy, or 1/2 cup of juice or soda, is recommended, according to Healthline. A diabetic may need to seek help from another person to get the necessary food items. People at risk of low blood sugar should carry a glucagon kit, which can be used to increase blood sugar levels in emergencies.