Drinking excessive quantities of sugar-sweetened drinks, such as soda, can have a variety of negative health impacts. These vary from an increased risk of dental decay to an increased risk of heart disease and metabolic illnesses such as type 2 diabetes. If you are drinking a lot of Pepsi, it's important to be aware of the consequences this habit is having on your body. Drinking several bottles of soda every day is almost sure to have some sort of negative effect on your health. Your body does not produce insulin itself, it requires insulin to function properly. If you consume a large amount of sugar then your blood glucose (sugar) levels will rise which causes your body to release more insulin. This cycle continues until either too much insulin is released into the bloodstream causing hypoglycaemia or the cells become insensitive to the insulin that is being released resulting in hyperglycaemia. When your blood glucose levels are high for a long period of time it can lead to serious long-term health problems. Over time, high blood sugar levels cause many different health problems. These include things like kidney damage, blindness, heart disease and nerve damage. However, if you improve your diet and stop drinking so much soda then these issues will be able to be treated or prevented.