How much coffee can you tolerate before you are able to hear the blood flowing through your veins from the caffeine buzz?

I drank 5 cups in the morning, a couple at lunch and two mountain dews when I taught high school. That would definitely set me over the edge now!

3 cups, when I was your age maybe 7? I was a caffeine addict.

I love that feeling.

I've only ever had 1 cup.

very little

I can't say I've reached to that sickening point before.

4 cups in the morning…then iced coffee all day