Plenty of people use a cup of coffee to get moving in the morning, but how do you know when it's become too much of a good thing? The surprising signs you might want to cut back on caffeine prove that this stimulant can have unexpected side effects. Caffeine can be a wonderful helper when you need to stay alert, but it can have some downsides, too.
First, though, consider just how much caffeine is generally thought to be OK for a single person to enjoy on a daily basis. "Evidence demonstrates that for most healthy adults, 400mg of caffeine a day appears to be safe," Kelsey Western, M.D., resident physician in the Mayo Clinic Family Medicine Residency Program in Eau Claire, Wisconsin, tells Romper. "This is roughly the equivalent of 4 cups of coffee, though caffeine content of coffee varies widely." In addition to coffee, it's important to remember that teas, sodas, and energy drinks can also pack in the caffeine. In fact, headache and PMS medications, as well as some breakfast cereals, can also contain caffeine, according to Sleep.org. With all these sources, it may be easier to overdo it on this stimulant without even realizing it. With this in mind, keep an eye out for the signs of caffeine overuse, because it's possible to have too much of this good thing.