I really like coffee. I'm a coffee drinker at heart, rather than tea.
However, about 6 months ago I decided to cut my coffee consumption, down from the 10 cups a day (or so) to .. well, 4 or 5. I'm on about 4 cups of ground cafetière coffee now. I did this for "health" reasons, thinking I was drinking too much. But was I? I don't think I had any coffee related health issues (jitters, heart, sleep trouble).
Reading this page on Lifehacker has started me thinking again about coffee consumption.
Then again, I'm starting to enjoy a cup of proper green tea :-)
Maybe I need to cut out the caffeine completely for a couple of weeks and see what happens ....