Caffeine

5-Hour Energy's mixture of caffeine, vitamins and amino acids fuels millions of hectic days and nights, and a multibillion-dollar company. But its founder, Manoj Bhargava, tells Forbes that his lifelong pursuit has been inner tranquility. A contradiction? He thinks not.

Under the threat of an FDA ban, the makers of alcoholic energy drink Four Loko are changing its recipe to remove caffeine, guarana and taurine. But the only problem a ban of Four Loko would solve is to save young people from thinking they have personal responsibility for their choices -- again.

Two-thirds of the energy drink brands on the market do not disclose their caffeine content and of the ones that do so, some ignore the threshold for what is considered excessive, researchers at GoodGuide.com found. Venom, Monster, 5-Hour Energy, Ammo, FRS, and Red Bull Cola all keep hush about the...

While names like AMP Energy, Pepsi Max, Red Bull and Rockstar can sound exciting, that hyped-up feeling isn't from just the name -- one energy drink can pack as much caffeine as downing 15 cans of Coca-Cola, researchers say. Researchers looked at energy drink ingredients, including caffeine,...

Google unveiled Caffeine Tuesday evening, aiming to give its Web indexing and link delivery system a jolt of speed in finding new pages as well as delivering the most current version of existing pages.

With the holiday season upon us, a familiar end-of-party ritual is coming under fire. It turns out that drinking coffee after an evening of imbibing your favorite holiday cocktails doesn't actually sober you up, new research finds. In fact, caffeine may make matters worse: it can give you a false...

The unlikely marriage of caffeine and meat snack got its start in Utah, in the winter of 2005. Tech entrepreneurs and college friends Brian Levin and Matt Keiser were on a skiing trip at Snowbird, and after a day on the slopes, they partied hard and fueled up on energy-drink cocktails late into the...

Facebook bought FriendFeed yesterday for one-tenth what it was willing to pay for Twitter. It may be a double bargain if the purchase allows them to move past Twitter in the real-time search war. Twitter recently redesigned its homepage to show off its real-time search, while Google is working on...

In a trendy beverage progression he describes as "Red Bulls, coffee, and everything else," Digg founder Kevin Rose has now arrived at an ancient plateau: tea. He tells Wired Magazine that his company now spends $1,000 a month on special teas for his employees, including his favorite, Pu-erh from...

Green Mountain Coffee just came out with a new version of coffee that comes with an extra caffeine. It says Revv will have "will have 27% more coffee and 27% more kick." In other words, Green Mountain is trying to make the Jolt Cola of coffee, although it isn't as rambunctious about it: Jolt had...