Since the body burns sugar (glucose) for energy, it is imperative that a consistently adequate blood sugar level is maintained in order to retain a feeling of well-being - an ideal blood sugar level is 90-100 mg glucose per 100 cc of blood. At this level we are energetic and feel good, but when the level drops to 70 mg, hunger, fatigue and irritability set in. At levels below this, exhaustion, dizziness, heart palpitations and nausea are common.The blood glucose level is maintained between about 4 and 6 mM (mmol/l). It is tightly regulated in the human body. . The pancreas is the major sugar regulator and the body has a complicated hormonal balancing mechanism which keeps blood sugar at a fairly constant level. When the level is too high, the pancreas secretes insulin which converts glucose to glycogen: when the level is too low the pancreas secretes glucagon and the adrenal glands secrete adrenalin, two hormones that convert glycogen back to glucose. However, if this balancing mechanism gets out of order, it can produce either low blood sugar (hypoglycaemia) or high blood sugar (diabetes). Factors that can affect the blood sugar balance include an excessive use of white sugar, prolonged stress and nutrient deficiencies. Elimination of white sugar from the diet, together with supplements of the B-complex vitamins, chromium picolinate or GTF chromium, zinc and brewer's yeast will help to restore and stabilize blood sugar to a more acceptable level. It has two types of mutually antagonistic metabolic hormones affecting blood glucose levels: First is catabolic hormones which increase blood glucose and second one anabolic hormone which decreases blood glucose.

It has two main tests used to calculate diabetes . First one Fasting Glucose Test, the straight capacity of glucose levels in the blood after an 8 hour fast, and second one Oral Glucose Tolerance Test, capacity of the body's skill to suitably handle the intemperance sugar accessible after drinking a high glucose drink. Test of blood sugar from your palm, forearm, upper arm, thigh . Diabetes is a state where the sugar levels are too elevated in the blood .The causes of high blood sugar such as too much food ,too little exercise,Too little medicine ,Stress ,Illness ,Injury ,Short time between meals and snacks other sides low blood sugar causes such as Taken too much medicine and alchol. The symptom of high blood sugar such as thirst ,hunger , weakness, headache, depression other sides sign of low blood sugar level such as Sweaty,Hunger ,Anxiety etc.