The hormone -insulin produce in pancreas controls the level of sugar-glucose in blood.If insulin is secreted in low quantity,glucose level cannot be controlled; this disorder is called as diabetes.
* India has largest number of diabetes patients in the world.

Reasons for diabetes:-
- Heredity
- Obesity
- Lack of physical exercise
- Mental stress
Symptoms which cannot be ignored:-.
- Frequently urination at night.
- Increase obesity
- Weight loss
Preventive measure: following the proper diet, medicines and exercise under the supervision of doctor help to keep the diabetes under control.
There are a number of different types of diabetes, some of which are more prevalent than others. The most common form of diabetes in the general population is type 2 diabetes, which often develops from pre-diabetes.