Is there such thing as too much caffeine?

Although caffeine is considered to be very safe, serious health risks like cardiovascular issues can result if you have too much of it. Watch research neuroscientist Nicole Avena, PhD, explain why it's important to be aware of your caffeine intake.

You may be drinking more than you think—and it could affect your health.

Overdoing your daily brew can lead to a host of problems, including jitters, anxiety, insomnia—and much more.

Find out why massive amounts of caffeine can pose surprising health risks.

You can have too much of a good thing. But in moderate amounts, your daily cup could offer health benefits.

Moderate consumption is linked to some surprising potential health benefits—but it depends on a few key factors.