BAD IDEA
How many coffees are "too many coffees"?
More than your body-handling skills allow; usually over 4 a day turns you into a jittery mess.
There's no magic number, but more than 4 cups a day generally means you're pushing your luck. Excess caffeine can cause jitters, heart palpitations, and ruin your sleep, so don't turn your veins into coffee highways. Know your limits before your nervous system quits.