Hi, I was diagnosed with type 1 at the end of September, so everything is still pretty new. I've run the half marathon distance once before (pre-diabetes) and am now training for my first HM race in April. I haven't had any problems with blood sugar levels during ~5K runs, but yesterday I went for my first longer run of ~12km. My levels were 8.2 when I set out, more than two hours post a small meal (so insulin shouldn't have been in my system) and after half an hour down to 5.5 and trending downwards. I had an energy gel (25g carbs) and monitored for the rest of the run. My level went down to 5 (according to Libre; 4ish on xDrip) and stayed there for the rest of the run - another half an hour. I had maybe another 10g carbs during that time. After getting home it went back up to 9-ish before decreasing again. Then overnight I had hypo alarms and ate some carbs at 2:30 and again at 5:30. What I would mostly like to understand is * whether it's safe to keep running at 4-5mmol -- it stayed stable and another energy gel would have seemed like a LOT * what I should/could do differently to avoid the overnight hypos * just generally if anyone has tips or experiences to share! My runs are (hopefully) going to increase in length from now until the Spring and I want to be able to manage my diabetes at the same time!