In fruit flies research, scientists found that excess sugar can cut off important nerve chains associated with regulating satiety..

The eating habits of people and flies are, of course, different, but there are similarities between us.. Insects have proven to be an invaluable model for studying various aspects of human health thanks to the many genes that they share with us..

The neural chains of fruit flies, which are responsible for processing taste, have something in common with us.. They include the neurotransmitter dopamine, which plays a key role in the brain's reward system..

High sugar insects have been found to reduce and delay the activity of dopaminergic neurons. For further research, scientists introduced a molecule into neurons that allowed them to activate at the same level as ordinary flies..

When they were activated, the team found that flies that consume a lot of sugar eat the equivalent of one cookie, even when they are offered a “whole box”. Meanwhile, fruit flies that were not affected by the “activation” continued to eat for several hours.

Excess sugar causes flies to miss satiety signals that they usually rely on. Scientists have found that by eliminating insects from a high-sugar diet, this process can be reversed, restoring the normal functioning of dopaminergic neurons.

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