Continuous glucose monitoring and stone tool: what they have in common

1. Step 1. Continuous glucose monitoring — is used in — Insulin pump. A closed-loop system.
2. Step 2. Insulin pump — uses — Insulin. It doses insulin.
3. Step 3. Insulin — uses — Syringe. Injections.
4. Step 4. Syringe — has part — Needle. A hollow needle.
5. Step 5. Needle — evolved from — Stone tool. Bone needles with an eye are part of the Palaeolithic toolkit.

Open Evothings