If you opt for blonde espresso at Starbucks, each shot contains 85 mg of caffeine. Is 200 mg of caffeine a lot? Caffeine is a stimulant that affects every person differently. A variety of things ...

Beyond its energizing effects, caffeine can also influence cognitive performance, memory, mood regulation and even long-term brain health.

If we were asked to write a list of addictive substances, we would probably include crack, alcohol and nicotine, but we might not include one that is in many of ...

Sometimes energy drinks have the opposite effect and lead to tiredness because you “crash.” Find out why drinks without sugar ...

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Caffeine is also a diuretic, which means that it can dehydrate your body. People who drink nothing but highly caffeinated drinks can end up in the hospital after passing out due to severe dehydration.

The general rule for adults is that a single dose of 200 milligrams of caffeine is not considered harmful to health. This is roughly equivalent to two cups of coffee, two cans of energy drink ...

If you suddenly stop or reduce your caffeine intake after consuming it regularly — typically more than 200 mg per day for more than 2 weeks — you may feel the symptoms of caffeine withdrawal.