Paraxanthine is the main metabolite of caffeine. Studies suggest it can boost alertness and focus, but the research base is much smaller than for caffeine.

The guy pouring my beer in Anchorage told me that he knew there was no truth to decades-old rumors about a research facility 200 miles to the northeast. Nobody was up there talking to aliens or ...

Experiments with esports players show this non-caffeinated drink combats mental fatigue in a different way than coffee and ...

"If a signal gets broadened by its own star's environment, it can slip below our detection thresholds, even if it's there." ...

When we imagine alien life, we picture monsters, insects, or tentacles—but what if the most realistic aliens are human-like? Evolution tends to solve the same problems with similar designs, and ...

A financial crisis could be triggered by an announcement that aliens exist, according to Helen McCaw, a former policy expert of the Bank of England. McCaw told The Times of London that politicians and ...

The truth is out there — and late President George H.W. Bush apparently knew it — telling a federal official that an alien made contact with humans at a secretive New Mexico air base in 1964, ...

Science fiction has long speculated about the possibility of first contact with an alien species from a distant world and how we might be able to communicate with them. But what if we simply don’t ...

Promotion for Emma Stone’s new horror-comedy “Bugonia” is getting pretty meta with the launch of a new website that’s centered on bringing the truth to light about Auxolith CEO Michelle Fuller.

Add Yahoo as a preferred source to see more of our stories on Google. (Photo by BRENDAN SMIALOWSKI/AFP via Getty Images) A new genetic study claims alien DNA could be inserted into humans. Dr. Max ...