I believe from what I learned, mouth to mouth has been proven less effective. Hands only CPR should be the only one put into practice.
Insulin is produced by a type of cell called a Beta-Cell which is located in the pancreas. When over production or underproduction or no production is noted, then it is an indication that some sort of metabolic illness involving beta cells is present. These are usually diseases such Diabetes Mellitus both I and II, Prediabetes, Gestational Diabetes (mostly diabetes)
Opiates
Offtopic=(if you want something tasty make lemon poppy seed muffins, like OMG so good)
