Fainting may have a variety of causes. A simple episode, also called a vasovagal attack or neurally-mediated syncope, is the most common type of fainting spell. It is most common in children and young adults. A vasovagal attack happens because blood pressure drops, reducing circulation to the brain and causing loss of consciousness.
Diabetes mellitus type 1. Diabetes mellitus type 1 (also known as type 1 diabetes) is a form of diabetes mellitus in which not enough insulin is produced. The lack of insulin results in high blood sugar levels. The classical symptoms are frequent urination, increased thirst, increased hunger, and weight loss.
Type 1 and Type 2 Diabetes. Type 1 diabetes or insulin-dependent diabetes, is usually diagnosed in children and young adults. There are few known risk factors, though family history may play a role. Type 2, or insulin-resistant diabetes, is most often diagnosed in adults, though the rate of Type 2 in youth is on the rise. In contrast to type 1 diabetes, type 2 may not require insulin injections and can often be controlled with lifestyle changes, oral medications or both.