Caffeine and Time Travel

I seem to be finding myself into a situation where it appears as if caffeine consumption actually makes me feel sleepier. So, I figured- hey! I can turn this into a time travel proof!

Of course, the graph is entirely wrong, but I realised that after I painstakingly wrote up the axes with my mouse. Pretend the redacted y axis is "rate of time flow" or something, I dunno.