Ditto. In college I was up to 6 cups before noon, some 3 or more later on depending on my class workload.
My shrink gave me a stern talking to and I reduced it to basically nil. Funnily enough and for unrelated reasons I haven't had a panic attack in years.
I imagine that when base building comes, this'll be an important thing to consider. For the moment, the only two times it has come up as a significant obstacle to overcome in my playtime was during a Lazarus worm thing I did with my org where it took much longer than normal because some players just kept coming back, making the whole thing take twice as long. The second was the Hathor laser which made it a pain in the ass sitting outside the crater with a railgun. Had to take a Nursa to cool down every now and then.