The man behind the Bulletproof empire explains why sometimes in order to get results, you have to go to extremes.

There are a lot of tools out there that claim to train—even change—your brain. So do they work? We put them to the test and things get... interesting.

If your phone was stolen, you'd most likely be concerned that the thief would now have access to your bank account...and your vacation photos. But what if the thief was the government?

What happens when we start thinking of ourselves as walking, breathing, calorie-consuming piles of data? We asked hundreds of people to weigh in (figuratively speaking).

Douglas Rushkoff, author of "Throwing Rocks at the Google Bus," argues that our fixation on "growth" has made us less financially secure, with big consequences for our communities.

As promised! The time has come to talk about sex. Or, rather, to swipe about sex. 

How much would it take for someone to hack YOUR life? And really, how worried do you actually need to be? This is what happened when Fusion's Kevin Roose asked some of the best hackers in the world to have at him. 

We tried using apps to stop sugar cravings. It... didn't work. Now, we want to hear your stories.

We tried using apps to stop sugar cravings. It... didn't work. Now, we want to hear your stories.

What we learned through a week of experimenting with information overload interventions.