How Often to Check, and Why

People moving from general diabetes advice to Type 1 are often surprised by how much checking is involved. There is a reason for each one.

• Before each meal — this sets your dose. Without it you are guessing.
• Before bed — a reading that is already low or falling means a long night without supervision.
• Before driving — a low behind the wheel is dangerous to more people than you.
• Before, sometimes during, and after exercise — activity can move glucose a long way.
• Any time you feel unwell in a way that could be a low.
• More often when you are ill, because illness pushes glucose up and can develop into ketoacidosis.

That is a genuine workload, and it is the main practical difference from managing Type 2 with tablets.

The principle is the same though: a reading is useful when it changes a decision. A number you glance at and forget teaches you nothing, while a paired before-and-after reading around a meal tells you whether your dose for that meal was right.

Continuous glucose monitoring reduces the fingersticks substantially, which is a large part of its appeal in Type 1.

Two habits make the load lighter. Test with a question in mind rather than out of duty, and write the number down with a note of what you ate and did — a reading with no context beside it teaches you very little later.

And tell your team if the schedule is making you anxious rather than informed. That is a reason to change the plan, not to push through it.