If one sits down on a chair and takes rest for a while, it is OK. But if he goes on working only with his brain and eyes for hours together sitting on a chair, this resting on that chair becomes the worst work of any work. Let it be the work on a computer or reading a book. Here, other parts of the body are awake but not working. The person's digestive system produces glucose from the food he has taken in. The blood carrying this glucose is now in a dilemma in this situation. His muscles are not working; they don't require glucose. All the muscular parts of the body are awake and ready to work; glucose is also ready to get used up for that; due to this, it cannot be converted by the body into either protein or fat also. So, the excess glucose, that remains after being used for vital basic functions of the body, accumulates in the blood as time goes on with the continuing process of digestion. This chronic accumulation of excess glucose that is ready but without any utilisation results in the retention of glucose in the blood, the glucose being blind-folded and losing its capacity to find its usual exit into the body tissues. Then, a part of this glucose gets out of the blood to the exterior as such in the urine; the rest and the most of it remains in the blood unused. This state of (dis-eased) body is Diabetes mellitus! So, a man must be either bodily active fully, or take rest completely in between, in doing such sedentary works - that resting too taken in between equal shorter periods of doing that work. This will release glucose from blood either to the muscles for continuing their activity or to the fatty tissue for fat formation, thus preventing Diabetes mellitus in you! This is important in people who take in more carbohydrate-rich diets. Moreover, the students in their schools must not be confined to their desks for both the day and nighttime studies in the name of tuition to get more marks in their exams. Their nature is to be active always. If their activities are restricted now, they may develop later Diabetes mellitus in their adulthood! Make our future generations Diabetes-free!