Blood sugar and the insulin response are a negative feedback loop, which means that it wants to resist change as much as possible. This loop wants to keep the body in homeostasis and when there are dips or spikes in blood sugar, return it back to normal levels. The hypothalamus has neurons that are used to detect glucose, and when your blood sugar spikes, insulin is produced. Insulin then changes the glucose into glycogen which decreases your blood sugar level. Insulin production is then stopped once this is complete, which is the negative feedback loop aspect.
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