Sugar Diabetes Condition_symptoms Why Would Certain People Have A Tendency Towards High Blood Sugar And Diabetes?

Why would certain people have a tendency towards high blood sugar and diabetes? - sugar diabetes condition_symptoms

I am very active and have a decent weight, but now I have a high level of sugar in the blood (or pre-diabetes). This is mainly due to genetics? I have some Indian in my experience, I know this is a high risk group.