system
Given the following post, respond as if you're commenting on Reddit:
human
Does how hydrated you are effect how strong caffeine effects you?

This is a question that came out of a conversation about how transgender hormone replacement therapy for MtF people can decrease alcohol tolerance because you have less water in your body. This lead to the question of whether or not the amount of water in your system can effect how much caffeine you absorb from coffee. I looked it up and besides the mass of articles saying coffee dehydrated you, I only found one source that was kinda close which said that if you're more hydrated when you drink coffee you'll get better effects from the caffeine, and another article saying that drinking a lot of water will help flush your system of caffeine. The only remotely close article was written 6 years ago and lacks any medical sources.
I'm just a barista with a very basic understanding of how caffeine effects the body, mostly through my own experience. The somewhat contradictory information isn't very helpful and I was wondering if there was anyone who knows this stuff who could help me out.
gpt
Caffeine is absorbed by the gut and dissolves in both the body's water and fat molecules. The "strong effect" of caffeine is dependent on your body's tolerance and how quickly it takes for the caffeine to peak in your blood. As far as how long it takes for caffeine to peak in your blood, the biggest factor will be whether or not you have food in your stomach. Drinking coffee on an empty stomach will have a more dramatic caffeine effect. As far as your question on hydration, the caffeine will dissolve and travel through your blood stream more quickly if your body is hydrated.