Question: do espresso shots wake you up?
Answer: Get this: A shot of espresso has 25 to 50 percent less caffeine than a cup of regular coffee, most likely because of coffee's longer brew time. See the difference at Starbucks—a Tall Latte (12 oz) has 75 mg caffeine; a Tall brewed Bold Pick of the Day coffee (12 oz) has 260 mg caffeine.