system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is it that after you had a cough drop, cold water feels even colder when drinking?

ELI5: Why is it that after you had a cough drop, cold water feels even colder when drinking?
gpt
It's because of the menthol in the cough drop. A protein called TRPM8 regulates the movement of ions across the membranes of cells, and reacts to temperature, sending a signal to your brain telling you that it's cold. For some reason we don't fully understand yet, it also reacts with mint and menthol, sending the same signal regardless of actual temperature.