1. genetic traits,
2. atmospheric and other pollution effects,
3. Lifestyle diseases - excess of foods containing fats, carbohydrates, sugar etc or not having the right combination of components of food and finally
4. scarcity of food resulting in stunted growth, deficiency of vitamins, proteins, carbohydrates, fats etc.
Diabetes, type 2 is basically a life styl;e disease. the health condition where insulin hormone from pancreas becomes ineffective in controlling blood sugar levels, leading to grave health complications.