There will be times when you haven’t taken enough insulin to match the carbohydrate that you have eaten, which means that your blood glucose level will be too high. This is known as hyperglycaemia, or a ‘hyper’ for short. A hyper doesn’t carry the same immediate risk as a hypo, but frequent high blood glucose increases the risks of developing complications, so it’s important to minimise this as much as possible. It can also make you feel pretty unwell if you are hyper for too long. High blood glucose can be reduced by regularly testing your blood glucose and matching insulin to food intake, exercise and all the other factors, as closely as possible. If you are worried about how often you have high blood glucose, talk to your healthcare team for help on how to tackle it. New technologies like Continuous Glucose Monitors make blood glucose testing easier, but regular testing with a meter will also help.