Why do we itch? - KMSP-TV

Why do we itch?

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Dr. Archelle Georgiou discusses the science behind the itch-scratch cycle, including why some individuals get more mosquito bites than others.

When we itch, we have nerve endings that are in our skin that monitor irritants, and when an irritant is sensed, it sends a signal to the spinal cord, and the nerve cells creates a protein that travels to the brain to tell you when you have an itch.

Individuals with chronic itching could benefit from this research that pinpoints those proteins, but because of the recent nature of the study, relief for some might be far in the future.

Regarding mosquito bites, Dr. Georgiou says there's controversy surrounding blood type, but we do know mosquitos crave people who create more carbon dioxide, and also body heat.

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