you bet!

In fact, for six weeks, he had been drinking up to 10 cups of Starbucks coffee daily.

That is a lot of caffeine, considering that each large cup contains on average about 375 milligrams, according to a 2003 study of caffeinated coffee published in The Journal of Analytical Toxicology. With 10 cups a day, Adam was turbocharged with nearly four grams of caffeine.