Hypoglycaemia affects not only people with diabetes, but everyone who loves and cares for them. Having a brother with type 1 diabetes, I have seen this phenomenon up close. My brother would sometimes drive to unfamiliar places without remembering how he got there. He would awaken at night, confused and belligerent. On several occasions, a family member had to call emergency medical services to treat him. Over time, these episodes created a chronic weariness and wariness in our family, which persisted even after a continuous glucose monitoring (CGM) system significantly reduced his lows. Having a sister who knows quite a lot about hypoglycaemia has not fully solved his challenges with hypoglycaemia.