system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is it that when I'm very thirsty I'm able to chug water very quickly but when I'm less thirsty it feels like there is some resistance?
gpt
Hunger and thirst share some pathways. Leads to the pro dieting tip - if you are on a diet and think you are hungry drink a glass of water first. If you still feel hungry then you are actually hungry. The reverse applies here - if you have a full stomach and try to drink, your body will be more resistant than if you have an empty stomach.