Hypoglycaemia is a condition of low levels of glucose in the body.   "Hypo” means low and "glycaemia” means glucose levels in the blood.

Normal blood sugar levels are 60 to 100 mg / 100 ml. in a fasting condition and 100 to 160mg / 100 ml, 90 to 120 minutes after a full meal. Any level of blood sugar, below 60 mg / 100 ml in a fasting condition and below 100 mg / 100 ml. is starting of hypoglycaemia. Hypoglycaemia is a complication of diabetes both Type 1 (Insulin dependant) and Type 2 (Non insulin dependant) but is more common with Type 1 diabetes. Skipping a meal in a diabetic person poses risk of hypoglycaemia. Taking anti-diabetic pills or insulin without a meal or overdose of the anti-diabetic medication can lead to hypoglycaemia. Physical and mental stress, use of alcohol, severe infections, dehydration, e.t.c., can also cause hypoglycaemia in persons, more so in diabetics.Hypoglycaemia is not restricted to diabetic patients. If a non diabetic person misses a meal and exerts, he starts feeling tired and listless.  This happens because the blood glucose starts becoming less in the brain. Excess work to which one’s body is not acclimatized can also produce hypoglycaemia in a person. Alcohol reduces the blood glucose levels producing hypoglycaemia.Whatever may be the cause of hypoglycaemia, it is a potentially fatal condition. The brain cells are highly dependant on glucose for their functioning. Therefore, early stages of hypoglycaemia are characterized by difficulty in concentration and confusion. If hypoglycaemia is not corrected at this stage it can lead to delirium, convulsions, unconsciousness, coma and even death. If treatment is instituted early, this condition is totally reversible, but if delayed death can occur.  It can also lead to permanent neurological deficit in some form, like paralysis of limbs or   some part of the body.Other cells of the body also depend on glucose for obtaining necessary energy   needed for their functioning.  Therefore as the blood glucose level goes down, one starts feeling exhausted.  It becomes difficult to concentrate on the work at hand. To combat the hypoglycaemia, the body starts compensating by producing counter regulatory hormones like glucagon and adrenaline. Adrenaline causes, palpitations, sweating and also rise in blood pressure, rhythm disturbances of the heart and cardiac arrest in severe cases. A diabetic person has to be very careful about   his or her diet. Small frequent meals are the best way to   avoid hypoglycaemia. It is desirable to take a night-cap before sleeping to avoid early morning hypoglycaemia. One has to be very particular about timings of meals also. Diabetic patients are instructed to always carry some food stuff with them.  On experiencing the earliest symptom of hypoglycaemia they can take a bite. One should never miss a meal especially break-fast to prevent low blood glucose levels.  Alcohol should be best avoided in all persons irrespective of their diabetic status as it not only can cause hypoglycaemia but is harmful in many ways.Physical exercise if started should not be very strenuous to begin with. Any exercise done, should be increased in quantity gradually. This prevents hypoglycaemia and also muscle damage. Hypoglycaemia is a condition of the body which can be easily diagnosed by the affected person himself. Only thing is that they need to be aware of the condition, its symptoms and consequences. On experiencing low blood glucose, all that is needed is to have a quick small bite, or a hot sweet drink. This is very useful in mild cases. Failing to do that, as the condition progresses, one may have to be hospitalised for injections of glucose.Pande is a specialist Internal medicine, Ruhengeri Hospital